SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2014-2120

Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability

KEVMEDIUM 6.1EPSS 22.6%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 December 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Cross-site scripting (XSS) vulnerability in the WebVPN login page in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter, aka Bug ID CSCun19025.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
22.56% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 12 November 2024 · due 3 December 2024
Weakness
CWE-79
Affected
cisco/adaptive security appliance software
Source
psirt@cisco.com
EPSS trend
0%13%25%28 September 2026: 22.56%30 October 2026: 22.56%28 September 202630 October 2026

EPSS moved from 22.6% on 28 September 2026 to 22.6% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-CVE-2014-2120 ; https://nvd.nist.gov/vuln/detail/CVE-2014-2120

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.