8.1
    High

    CVE-2021-27876

    Last Modified: 3 Nov 2025

    An issue was discovered in Veritas Backup Exec before 21.2. The communication between a client and an Agent requires successful authentication, which is typically completed over a secure TLS communication. However, due to a vulnerability in the SHA Authentication scheme, an attacker is able to gain unauthorized access and complete the authentication process. Subsequently, the client can execute data management protocol commands on the authenticated connection. By using crafted input parameters in one of these commands, an attacker can access an arbitrary file on the system using System privileges.

    Published:1 Mar 2021
    9.8
    Critical

    CVE-2021-27850

    Last Modified: 21 Nov 2024

    A critical unauthenticated remote code execution vulnerability was found all recent versions of Apache Tapestry. The affected versions include 5.4.5, 5.5.0, 5.6.2 and 5.7.0. The vulnerability I have found is a bypass of the fix for CVE-2019-0195. Recap: Before the fix of CVE-2019-0195 it was possible to download arbitrary class files from the classpath by providing a crafted asset file URL. An attacker was able to download the file `AppModule.class` by requesting the URL `http://localhost:8080/assets/something/services/AppModule.class` which contains a HMAC secret key. The fix for that bug was a blacklist filter that checks if the URL ends with `.class`, `.properties` or `.xml`. Bypass: Unfortunately, the blacklist solution can simply be bypassed by appending a `/` at the end of the URL: `http://localhost:8080/assets/something/services/AppModule.class/` The slash is stripped after the blacklist check and the file `AppModule.class` is loaded into the response. This class usually contains the HMAC secret key which is used to sign serialized Java objects. With the knowledge of that key an attacker can sign a Java gadget chain that leads to RCE (e.g. CommonsBeanUtils1 from ysoserial). Solution for this vulnerability: * For Apache Tapestry 5.4.0 to 5.6.1, upgrade to 5.6.2 or later. * For Apache Tapestry 5.7.0, upgrade to 5.7.1 or later.

    Published:15 Apr 2021
    9.1
    Critical

    CVE-2021-27828

    Last Modified: 3 Jun 2021

    SQL injection in In4Suite ERP 3.2.74.1370 allows attackers to modify or delete data, causing persistent changes to the application's content or behavior by using malicious SQL queries.

    Source:Gulab Mondal
    Published:1 Jun 2021
    7.5
    High

    CVE-2021-27825

    Last Modified: 7 Apr 2023

    A directory traversal vulnerability on Mercury MAC1200R devices allows attackers to read arbitrary files via a web-static/ URL.

    Source:Chunlei Shang_ Jiangsu Public Information Co._ Ltd.
    Published:29 May 2023
    6.1
    Medium

    CVE-2021-27695

    Last Modified: 16 Mar 2021

    Multiple stored cross-site scripting (XSS) vulnerabilities in openMAINT 2.1-3.3-b allow remote attackers to inject arbitrary web script or HTML via any "Add" sections, such as Add Card Building & Floor, or others in the Name and Code Parameters.

    Source:Hosein Vita
    Published:15 Mar 2021
    9.8
    Critical

    CVE-2021-27651

    Last Modified: 21 Nov 2024

    In versions 8.2.1 through 8.5.2 of Pega Infinity, the password reset functionality for local accounts can be used to bypass local authentication checks.

    Published:29 Apr 2021
    5.9
    Medium

    CVE-2021-27568

    Last Modified: 21 Nov 2024

    An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

    Published:23 Feb 2021
    6.1
    Medium

    CVE-2021-27520

    Last Modified: 3 Jun 2021

    A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.

    Source:Piyush Patil
    Published:19 Mar 2021
    6.1
    Medium

    CVE-2021-27519

    Last Modified: 3 Jun 2021

    A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "srch" parameter.

    Source:Piyush Patil
    Published:19 Mar 2021
    8.8
    High

    CVE-2021-27513

    Last Modified: 21 Nov 2024

    The module admin_ITSM in EyesOfNetwork 5.3-10 allows remote authenticated users to upload arbitrary .xml.php files because it relies on "le filtre userside."

    Published:21 Feb 2021
    10
    Critical

    CVE-2021-27460

    Last Modified: 16 Apr 2025

    Rockwell Automation FactoryTalk AssetCentre v10.00 and earlier components contain .NET remoting endpoints that deserialize untrusted data without sufficiently verifying that the resulting data will be valid. This vulnerability may allow a remote, unauthenticated attacker to gain full access to the FactoryTalk AssetCentre main server and all agent machines.

    Published:23 Mar 2022
    6.1
    Medium

    CVE-2021-27404

    Last Modified: 21 Nov 2024

    Askey RTF8115VW BR_SV_g11.11_RTF_TEF001_V6.54_V014 devices allow injection of a Host HTTP header.

    Published:19 Feb 2021
    6.1
    Medium

    CVE-2021-27403

    Last Modified: 21 Nov 2024

    Askey RTF8115VW BR_SV_g11.11_RTF_TEF001_V6.54_V014 devices allow cgi-bin/te_acceso_router.cgi curWebPage XSS.

    Published:19 Feb 2021
    5.4
    Medium

    CVE-2021-27370

    Last Modified: 23 Feb 2021

    The Contact page in Monica 2.19.1 allows stored XSS via the Last Name field.

    Source:BouSalman
    Published:22 Feb 2021
    7.8
    High

    CVE-2021-27365

    Last Modified: 21 Nov 2024

    An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

    Published:5 Mar 2021
    5.9
    Medium

    CVE-2021-27342

    Last Modified: 21 Nov 2024

    An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack

    Published:17 May 2021
    5.4
    Medium

    CVE-2021-27338

    Last Modified: 21 Nov 2024

    Faraday Edge before 3.7 allows XSS via the network/create/ page and its network name parameter.

    Published:20 Jul 2021
    6.5
    Medium

    CVE-2021-27328

    Last Modified: 21 Nov 2024

    Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key.

    Published:19 Feb 2021
    4.8
    Medium

    CVE-2021-27308

    Last Modified: 3 Jun 2021

    A cross-site scripting (XSS) vulnerability in the admin login panel in 4images version 1.8 allows remote attackers to inject JavaScript via the "redirect" parameter.

    Source:Piyush Patil
    Published:22 Mar 2021
    9.1
    Critical

    CVE-2021-27289

    Last Modified: 15 Apr 2026

    A replay attack vulnerability was discovered in a Zigbee smart home kit manufactured by Ksix (Zigbee Gateway Module = v1.0.3, Door Sensor = v1.0.7, Motion Sensor = v1.0.12), where the Zigbee anti-replay mechanism - based on the frame counter field - is improperly implemented. As a result, an attacker within wireless range can resend captured packets with a higher sequence number, which the devices incorrectly accept as legitimate messages. This allows spoofed commands to be injected without authentication, triggering false alerts and misleading the user through notifications in the mobile application used to monitor the network.

    Published:15 Apr 2025
    8.4
    High

    CVE-2021-27285

    Last Modified: 5 Sept 2025

    An issue was discovered in Inspur ClusterEngine v4.0 that allows attackers to gain escalated Local privileges and execute arbitrary commands via /opt/tsce4/torque6/bin/getJobsByShell.

    Published:6 Jan 2025
    8
    High

    CVE-2021-27246

    Last Modified: 21 Nov 2024

    This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

    Published:14 Apr 2021
    7.5
    High

    CVE-2021-27211

    Last Modified: 21 Nov 2024

    steghide 0.5.1 relies on a certain 32-bit seed value, which makes it easier for attackers to detect hidden data.

    Published:15 Feb 2021
    9.8
    Critical

    CVE-2021-27198

    Last Modified: 21 Nov 2024

    An issue was discovered in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.

    Published:26 Feb 2021
    5.4
    Medium

    CVE-2021-27190

    Last Modified: 21 Nov 2024

    A Stored Cross Site Scripting(XSS) Vulnerability was discovered in PEEL SHOPPING 9.3.0 and 9.4.0, which are publicly available. The user supplied input containing polyglot payload is echoed back in javascript code in HTML response. This allows an attacker to input malicious JavaScript which can steal cookie, redirect them to other malicious website, etc.

    Published:12 Feb 2021
    7.5
    High

    CVE-2021-27188

    Last Modified: 21 Nov 2024

    The Sovremennye Delovye Tekhnologii FX Aggregator terminal client 1 allows attackers to cause a denial of service (access suspended for five hours) by making five invalid login attempts to a victim's account.

    Published:12 Feb 2021
    7.5
    High

    CVE-2021-27187

    Last Modified: 21 Nov 2024

    The Sovremennye Delovye Tekhnologii FX Aggregator terminal client 1 stores authentication credentials in cleartext in login.sav when the Save Password box is checked.

    Published:12 Feb 2021
    6.1
    Medium

    CVE-2021-27180

    Last Modified: 21 Nov 2024

    An issue was discovered in MDaemon before 20.0.4. There is Reflected XSS in Webmail (aka WorldClient). It can be exploited via a GET request. It allows performing any action with the privileges of the attacked user.

    Published:14 Apr 2021
    9.8
    Critical

    CVE-2021-27177

    Last Modified: 21 Nov 2024

    An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to bypass authentication by sending the decoded value of the GgpoZWxwCmxpc3QKd2hvCg== string to the telnet server.

    Published:10 Feb 2021
    9.8
    Critical

    CVE-2021-27101

    Last Modified: 3 Nov 2025

    Accellion FTA 9_12_370 and earlier is affected by SQL injection via a crafted Host header in a request to document_root.html. The fixed version is FTA_9_12_380 and later.

    Published:16 Feb 2021
    7.8
    High

    CVE-2021-27065

    Last Modified: 1 Nov 2021

    Microsoft Exchange Server Remote Code Execution Vulnerability

    Source:testanull
    Published:2 Mar 2021
    8.2
    High

    CVE-2021-26943

    Last Modified: 21 Nov 2024

    The UX360CA BIOS through 303 on ASUS laptops allow an attacker (with the ring 0 privilege) to overwrite nearly arbitrary physical memory locations, including SMRAM, and execute arbitrary code in the SMM (issue 3 of 3).

    Published:31 Mar 2021
    6.1
    Medium

    CVE-2021-26929

    Last Modified: 15 Apr 2021

    An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses.

    Source:nu11secur1ty
    Published:14 Feb 2021
    9.8
    Critical

    CVE-2021-26904

    Last Modified: 21 Nov 2024

    LMA ISIDA Retriever 5.2 allows SQL Injection.

    Published:26 Feb 2021
    6.1
    Medium

    CVE-2021-26903

    Last Modified: 21 Nov 2024

    LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].

    Published:26 Feb 2021
    7.8
    High

    CVE-2021-26882

    Last Modified: 19 Aug 2026

    Remote Access API Elevation of Privilege Vulnerability

    Published:11 Mar 2021
    7.8
    High

    CVE-2021-26871

    Last Modified: 19 Aug 2026

    Windows WalletService Elevation of Privilege Vulnerability

    Published:11 Mar 2021
    7.8
    High

    CVE-2021-26868

    Last Modified: 19 Aug 2026

    Windows Graphics Component Elevation of Privilege Vulnerability

    Published:11 Mar 2021
    7.8
    High

    CVE-2021-26857

    Last Modified: 19 Aug 2026

    Microsoft Exchange Server Remote Code Execution Vulnerability

    Published:2 Mar 2021
    —
    Unknown

    CVE-2021-26856

    https://github.com/avi8892/CVE-2021-26856

    9.1
    Critical

    CVE-2021-26855

    Last Modified: 1 Nov 2021

    Microsoft Exchange Server Remote Code Execution Vulnerability

    Source:F5
    Published:2 Mar 2021
    9.8
    Critical

    CVE-2021-26837

    Last Modified: 21 Nov 2024

    SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.

    Published:18 Sept 2023
    6.1
    Medium

    CVE-2021-26832

    Last Modified: 21 Nov 2024

    Cross Site Scripting (XSS) in the "Reset Password" page form of Priority Enterprise Management System v8.00 allows attackers to execute javascript on behalf of the victim by sending a malicious URL or directing the victim to a malicious site.

    Published:14 Apr 2021
    9.1
    Critical

    CVE-2021-26830

    Last Modified: 26 Apr 2021

    SQL Injection in Tribalsystems Zenario CMS 8.8.52729 allows remote attackers to access the database or delete the plugin. This is accomplished via the `ID` input field of ajax.php in the `Pugin library - delete` module.

    Source:Balaji Ayyasamy
    Published:16 Apr 2021
    8.8
    High

    CVE-2021-26828

    Last Modified: 4 Dec 2025

    OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows remote authenticated users to upload and execute arbitrary JSP files via view_edit.shtm.

    Published:11 Jun 2021
    8.8
    High

    CVE-2021-26814

    Last Modified: 21 Nov 2024

    Wazuh API in Wazuh from 4.0.0 to 4.0.3 allows authenticated users to execute arbitrary code with administrative privileges via /manager/files URI. An authenticated user to the service may exploit incomplete input validation on the /manager/files API to inject arbitrary code within the API service script.

    Published:6 Mar 2021
    9.8
    Critical

    CVE-2021-26714

    Last Modified: 21 Nov 2024

    The Enterprise License Manager portal in Mitel MiContact Center Enterprise before 9.4 could allow a user to access restricted files and folders due to insufficient access control. A successful exploit could allow an attacker to view and modify application data via Directory Traversal.

    Published:29 Mar 2021
    7
    High

    CVE-2021-26708

    Last Modified: 21 Nov 2024

    A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

    Published:5 Feb 2021
    7.8
    High

    CVE-2021-26700

    Last Modified: 16 Jul 2025

    Visual Studio Code npm-script Extension Remote Code Execution Vulnerability

    Published:25 Feb 2021
    9.8
    Critical

    CVE-2021-26691

    Last Modified: 21 Nov 2024

    In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow

    Published:4 Jun 2021