9.8
    Critical

    CVE-2021-3817

    Last Modified: 20 Dec 2021

    wbce_cms is vulnerable to Improper Neutralization of Special Elements used in an SQL Command

    Source:citril
    Published:9 Dec 2021
    9.8
    Critical

    CVE-2021-3773

    Last Modified: 28 Mar 2025

    A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.

    Published:8 Sept 2021
    5.3
    Medium

    CVE-2021-3754

    Last Modified: 21 Nov 2024

    A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.

    Published:30 May 2022
    7.5
    High

    CVE-2021-3749

    Last Modified: 21 Nov 2024

    axios is vulnerable to Inefficient Regular Expression Complexity

    Published:31 Aug 2021
    7.4
    High

    CVE-2021-3712

    Last Modified: 16 Apr 2026

    ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This contrasts with normal C strings which are repesented as a buffer for the string data which is terminated with a NUL (0) byte. Although not a strict requirement, ASN.1 strings that are parsed using OpenSSL's own "d2i" functions (and other similar parsing functions) as well as any string whose value has been set with the ASN1_STRING_set() function will additionally NUL terminate the byte array in the ASN1_STRING structure. However, it is possible for applications to directly construct valid ASN1_STRING structures which do not NUL terminate the byte array by directly setting the "data" and "length" fields in the ASN1_STRING array. This can also happen by using the ASN1_STRING_set0() function. Numerous OpenSSL functions that print ASN.1 data have been found to assume that the ASN1_STRING byte array will be NUL terminated, even though this is not guaranteed for strings that have been directly constructed. Where an application requests an ASN.1 structure to be printed, and where that ASN.1 structure contains ASN1_STRINGs that have been directly constructed by the application without NUL terminating the "data" field, then a read buffer overrun can occur. The same thing can also occur during name constraints processing of certificates (for example if a certificate has been directly constructed by the application instead of loading it via the OpenSSL parsing functions, and the certificate contains non NUL terminated ASN1_STRING structures). It can also occur in the X509_get1_email(), X509_REQ_get1_email() and X509_get1_ocsp() functions. If a malicious actor can cause an application to directly construct an ASN1_STRING and then process it through one of the affected OpenSSL functions then this issue could be hit. This might result in a crash (causing a Denial of Service attack). It could also result in the disclosure of private memory contents (such as private keys, or sensitive plaintext). Fixed in OpenSSL 1.1.1l (Affected 1.1.1-1.1.1k). Fixed in OpenSSL 1.0.2za (Affected 1.0.2-1.0.2y).

    Published:24 Aug 2021
    5.5
    Medium

    CVE-2021-3707

    Last Modified: 21 Nov 2024

    D-Link router DSL-2750U with firmware vME1.16 or prior versions is vulnerable to unauthorized configuration modification. An unauthenticated attacker on the local network may exploit this, with CVE-2021-3708, to execute any OS commands on the vulnerable device.

    Published:16 Aug 2021
    5.5
    Medium

    CVE-2021-3679

    Last Modified: 21 Nov 2024

    A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.

    Published:20 Jul 2021
    8.8
    High

    CVE-2021-3656

    Last Modified: 21 Nov 2024

    A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.

    Published:16 Aug 2021
    9.6
    Critical

    CVE-2021-3625

    Last Modified: 21 Nov 2024

    Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363

    Published:5 Oct 2021
    5.7
    Medium

    CVE-2021-3572

    Last Modified: 25 Aug 2026

    A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This is fixed in python-pip version 21.1.

    Published:24 Apr 2021
    7.8
    High

    CVE-2021-3560

    Last Modified: 23 Jun 2021

    It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

    Source:J Smith
    Published:3 Jun 2021
    6.5
    Medium

    CVE-2021-3544

    Last Modified: 21 Nov 2024

    Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.

    Published:4 May 2021
    7.8
    High

    CVE-2021-3516

    Last Modified: 21 Nov 2024

    There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

    Published:21 Apr 2021
    8.8
    High

    CVE-2021-3493

    Last Modified: 28 Oct 2025

    The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivileged overlay mounts, an attacker could use this to gain elevated privileges.

    Published:16 Apr 2021
    8.8
    High

    CVE-2021-3492

    Last Modified: 21 Nov 2024

    Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562.

    Published:16 Apr 2021
    7.8
    High

    CVE-2021-3490

    Last Modified: 21 Nov 2024

    The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).

    Published:11 May 2021
    7.1
    High

    CVE-2021-3456

    Last Modified: 21 Nov 2024

    An improper authorization handling flaw was found in Foreman. The Salt plugin for the smart-proxy allows foreman clients to execute actions that should be limited to the Foreman Server. This flaw allows an authenticated local attacker to access and delete limited resources and also causes a denial of service on the Foreman server. The highest threat from this vulnerability is to integrity and system availability.

    Published:30 Mar 2021
    7.4
    High

    CVE-2021-3450

    Last Modified: 21 Nov 2024

    The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).

    Published:25 Mar 2021
    5.9
    Medium

    CVE-2021-3449

    Last Modified: 21 Nov 2024

    An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

    Published:25 Mar 2021
    4.8
    Medium

    CVE-2021-3441

    Last Modified: 17 Oct 2021

    A potential security vulnerability has been identified for the HP OfficeJet 7110 Wide Format ePrinter that enables Cross-Site Scripting (XSS).

    Source:Tyler Butler
    Published:29 Oct 2021
    7.8
    High

    CVE-2021-3438

    Last Modified: 21 Nov 2024

    A potential buffer overflow in the software drivers for certain HP LaserJet products and Samsung product printers could lead to an escalation of privilege.

    Published:20 May 2021
    5.4
    Medium

    CVE-2021-3395

    Last Modified: 21 Nov 2024

    A cross-site scripting (XSS) vulnerability in Pryaniki 6.44.3 allows remote authenticated users to upload an arbitrary file. The JavaScript code will execute when someone visits the attachment.

    Published:2 Feb 2021
    8.8
    High

    CVE-2021-3394

    Last Modified: 29 Jul 2021

    Millennium Millewin (also known as "Cartella clinica") 13.39.028, 13.39.28.3342, and 13.39.146.1 has insecure folder permissions allowing a malicious user for a local privilege escalation.

    Source:Andrea Intilangelo
    Published:9 Feb 2021
    9.8
    Critical

    CVE-2021-3378

    Last Modified: 1 Mar 2021

    FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a "Content-Type: image/png" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.

    Source:Berkan Er
    Published:1 Feb 2021
    Unknown

    CVE-2021-3360

    https://github.com/tcbutler320/CVE-2021-3360

    5.4
    Medium

    CVE-2021-3355

    Last Modified: 26 Feb 2021

    A stored-self XSS exists in LightCMS v1.3.4, allowing an attacker to execute HTML or JavaScript code in a vulnerable Title field to /admin/SensitiveWords.

    Source:Peithon
    Published:24 Feb 2021
    7.8
    High

    CVE-2021-3347

    Last Modified: 25 Feb 2026

    An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.

    Published:28 Jan 2021
    7.8
    High

    CVE-2021-3345

    Last Modified: 21 Nov 2024

    _gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.

    Published:29 Jan 2021
    7.5
    High

    CVE-2021-3337

    Last Modified: 29 Jan 2021

    The Hide-Thread-Content plugin through 2021-01-27 for MyBB allows remote attackers to bypass intended content-reading restrictions by clicking on reply or quote in the postbit.

    Source:0xB9
    Published:28 Jan 2021
    6.1
    Medium

    CVE-2021-3318

    Last Modified: 23 Apr 2021

    attach/ajax.php in DzzOffice through 2.02.1 allows XSS via the editorid parameter.

    Source:nu11secur1ty
    Published:27 Jan 2021
    8.8
    High

    CVE-2021-3317

    Last Modified: 1 Feb 2021

    KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.

    Source:Metin Yunus Kandemir
    Published:26 Jan 2021
    7.8
    High

    CVE-2021-3310

    Last Modified: 21 Nov 2024

    Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).

    Published:10 Mar 2021
    5.4
    Medium

    CVE-2021-3298

    Last Modified: 29 Jan 2021

    Collabtive 3.1 allows XSS when an authenticated user enters an XSS payload into the address section of the profile edit page, aka the manageuser.php?action=edit address1 parameter.

    Source:Deha Berkin Bir
    Published:29 Jan 2021
    5.4
    Medium

    CVE-2021-3294

    Last Modified: 16 Feb 2021

    CASAP Automated Enrollment System 1.0 is affected by cross-site scripting (XSS) in users.php. An attacker can steal a cookie to perform user redirection to a malicious website.

    Source:Anita Gaud
    Published:8 Feb 2021
    7.2
    High

    CVE-2021-3291

    Last Modified: 2 Mar 2021

    Zen Cart 1.5.7b allows admins to execute arbitrary OS commands by inspecting an HTML radio input element (within the modules edit page) and inserting a command.

    Source:Mücahit Saratar
    Published:26 Jan 2021
    5.3
    Medium

    CVE-2021-3281

    Last Modified: 21 Nov 2024

    In Django 2.2 before 2.2.18, 3.0 before 3.0.12, and 3.1 before 3.1.6, the django.utils.archive.extract method (used by "startapp --template" and "startproject --template") allows directory traversal via an archive with absolute paths or relative paths with dot segments.

    Published:1 Feb 2021
    6.1
    Medium

    CVE-2021-3279

    Last Modified: 21 Nov 2024

    sz.chat version 4 allows injection of web scripts and HTML in the message box.

    Published:19 Jul 2021
    9.8
    Critical

    CVE-2021-3278

    Last Modified: 3 Jun 2021

    Local Service Search Engine Management System 1.0 has a vulnerability through authentication bypass using SQL injection . Using this vulnerability, an attacker can bypass the login page.

    Source:Aditya Wakhlu
    Published:25 Jan 2021
    9.8
    Critical

    CVE-2021-3262

    Last Modified: 21 Nov 2024

    TripSpark VEO Transportation-2.2.x-XP_BB-20201123-184084 NovusEDU-2.2.x-XP_BB-20201123-184084 allows unsafe data inputs in POST body parameters from end users without sanitizing using server-side logic. It was possible to inject custom SQL commands into the "Student Busing Information" search queries.

    Published:29 Aug 2023
    7.5
    High

    CVE-2021-3229

    Last Modified: 21 Nov 2024

    Denial of service in ASUSWRT ASUS RT-AX3000 firmware versions 3.0.0.4.384_10177 and earlier versions allows an attacker to disrupt the use of device setup services via continuous login error.

    Published:5 Feb 2021
    5.4
    Medium

    CVE-2021-3186

    Last Modified: 26 Jan 2021

    A Stored Cross-site scripting (XSS) vulnerability in /main.html Wifi Settings in Tenda AC5 AC1200 version V15.03.06.47_multi allows remote attackers to inject arbitrary web script or HTML via the Wifi Name parameter.

    Source:Chiragh Arora
    Published:24 Jan 2021
    7.5
    High

    CVE-2021-3166

    Last Modified: 21 Nov 2024

    An issue was discovered on ASUS DSL-N14U-B1 1.1.2.3_805 devices. An attacker can upload arbitrary file content as a firmware update when the filename Settings_DSL-N14U-B1.trx is used. Once this file is loaded, shutdown measures on a wide range of services are triggered as if it were a real update, resulting in a persistent outage of those services.

    Published:18 Jan 2021
    8.8
    High

    CVE-2021-3164

    Last Modified: 21 Nov 2024

    ChurchRota 2.6.4 is vulnerable to authenticated remote code execution. The user does not need to have file upload permission in order to upload and execute an arbitrary file via a POST request to resources.php.

    Published:21 Jan 2021
    Unknown

    CVE-2021-3157

    https://github.com/CrackerCat/cve-2021-3157

    7.8
    High

    CVE-2021-3156

    Last Modified: 3 Feb 2021

    Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

    Source:West Shepherd
    Published:26 Jan 2021
    7.5
    High

    CVE-2021-3138

    Last Modified: 21 Nov 2024

    In Discourse 2.7.0 through beta1, a rate-limit bypass leads to a bypass of the 2FA requirement for certain forms.

    Published:14 Jan 2021
    7.5
    High

    CVE-2021-3131

    Last Modified: 21 Nov 2024

    The Web server in 1C:Enterprise 8 before 8.3.17.1851 sends base64 encoded credentials in the creds URL parameter.

    Published:13 Jan 2021
    5.9
    Medium

    CVE-2021-3130

    Last Modified: 21 Nov 2024

    Within the Open-AudIT up to version 3.5.3 application, the web interface hides SSH secrets, Windows passwords, and SNMP strings from users using HTML 'password field' obfuscation. By using Developer tools or similar, it is possible to change the obfuscation so that the credentials are visible.

    Published:20 Jan 2021
    9.8
    Critical

    CVE-2021-3129

    Last Modified: 7 Apr 2021

    Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.

    Source:SunCSR Team
    Published:12 Jan 2021
    9.8
    Critical

    CVE-2021-3122

    Last Modified: 21 Nov 2024

    CMCAgent in NCR Command Center Agent 16.3 on Aloha POS/BOH servers permits the submission of a runCommand parameter (within an XML document sent to port 8089) that enables the remote, unauthenticated execution of an arbitrary command as SYSTEM, as exploited in the wild in 2020 and/or 2021. NOTE: the vendor's position is that exploitation occurs only on devices with a certain "misconfiguration."

    Published:7 Feb 2021