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    CVE-2021-35030

    A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet.

    Published:Jul 26, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 26, 2021
    EPSS Score:0.00115
    CVSS Score:3.5

    Affected Products

    Vendor
    Zyxel
    Product
    Gs1900-10hp
    Vendor
    Zyxel
    Product
    Gs1900-10hp Firmware
    Vendor
    Zyxel
    Product
    Gs1900-16
    Vendor
    Zyxel
    Product
    Gs1900-16 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-24
    Vendor
    Zyxel
    Product
    Gs1900-24 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-24e
    Vendor
    Zyxel
    Product
    Gs1900-24e Firmware
    Vendor
    Zyxel
    Product
    Gs1900-24ep
    Vendor
    Zyxel
    Product
    Gs1900-24ep Firmware
    Vendor
    Zyxel
    Product
    Gs1900-24hp
    Vendor
    Zyxel
    Product
    Gs1900-24hp Firmware
    Vendor
    Zyxel
    Product
    Gs1900-24hpv2
    Vendor
    Zyxel
    Product
    Gs1900-24hpv2 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-48
    Vendor
    Zyxel
    Product
    Gs1900-48 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-48hp
    Vendor
    Zyxel
    Product
    Gs1900-48hp Firmware
    Vendor
    Zyxel
    Product
    Gs1900-48hpv2
    Vendor
    Zyxel
    Product
    Gs1900-48hpv2 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-8
    Vendor
    Zyxel
    Product
    Gs1900-8 Firmware
    Vendor
    Zyxel
    Product
    Gs1900-8hp
    Vendor
    Zyxel
    Product
    Gs1900-8hp Firmware

    Exploits

    No exploit reference

    Related CVEs

    CVE-2024-8882 (CVSS 4.5) — A buffer overflow vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1…
    CVE-2024-8881 (CVSS 6.8) — A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmwar…
    CVE-2024-38270 (CVSS 5.3) — An insufficient entropy vulnerability caused by the improper use of a randomness function with low entropy for…
    CVE-2023-35140 (CVSS 5.5) — The improper privilege management vulnerability in the Zyxel GS1900-24EP switch firmware version V2.70(ABTO.5)…
    CVE-2022-45853 (CVSS 6.7) — The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version V2.70(AAHH.3) and the GS1900-8…
    CVE-2022-34746 (CVSS 5.9) — An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RS…
    CVE-2021-35032 (CVSS 6.4) — A vulnerability in the 'libsal.so' of the Zyxel GS1900 series firmware version 2.60 could allow an authenticat…
    CVE-2021-35031 (CVSS 6.8) — A vulnerability in the TFTP client of Zyxel GS1900 series firmware, XGS1210 series firmware, and XGS1250 serie…
    CVE-2019-15799 (CVSS 8.8) — An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. User accounts created thr…
    CVE-2019-15800 (CVSS 9.8) — An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Due to lack of input vali…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High