CVE Feed

    Dashboard / CVE / CVE-2025-20240

    CVE-2025-20240

    A vulnerability in the Web Authentication feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting attack (XSS) on an affected device. This vulnerability is due to improper sanitization of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a malicious link. A successful exploit could allow the attacker to execute a reflected XSS attack and steal user cookies from the affected device.

    Published:Sep 24, 2025
    Last Modified:Apr 15, 2026
    EPS:Sep 24, 2025
    EPSS Score:0.00036
    CVSS Score:6.1

    Affected Products

    Vendor
    Cisco
    Product
    Ios Xe Software

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-20311 (CVSS 6.3) — A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, r…
    CVE-2026-20301 (CVSS 8.6) — A vulnerability in the Extensible Messaging Client Protocol (XMCP), also referred to as the External Client pr…
    CVE-2026-20308 (CVSS 4.3) — A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, r…
    CVE-2026-20273 (CVSS 8.6) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20272 (CVSS 9.8) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20271 (CVSS 8.6) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20270 (CVSS 8.6) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20269 (CVSS 8.6) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20268 (CVSS 8.6) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…
    CVE-2026-20267 (CVSS 9) — As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software eng…

    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