Security Digest · Vulnerability record · Known exploited
CVE-2014-2120: Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability
Exploited in the wild (CISA KEV). 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.
CISA KEV · added 2024-11-12 CVSS 5.4 Medium EPSS 22.6% · p98
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Cisco Adaptive Security Appliance (ASA). CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-11-12, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-12-03; treat that as the outer limit, not the target.
- EPSS 22.6%, percentile 98: FIRST’s model estimates a 22.6% chance of exploitation activity in the next 30 days, higher than 98% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
What it is
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.
CISA’s summary
Cisco Adaptive Security Appliance (ASA) contains a cross-site scripting (XSS) vulnerability in the WebVPN login page. This vulnerability allows remote attackers to inject arbitrary web script or HTML via an unspecified parameter.
Weakness type: CWE-79.
Product: Cisco Adaptive Security Appliance (ASA) · Assigned by: cisco · Published: 2014-03-19
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: low (any account)
- User interaction: required (a user must click/open something)
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2024-11-12; federal due date 2024-12-03. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 22.56% probability of exploitation activity in the next 30 days; percentile 98.
Timeline
- — CVE record published by cisco
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- 20140318 Cisco Adaptive Security Appliance WebVPN Login Page Cross-Site Scripting Vulnerability tools.cisco.com
- Listed in CISA KEV notes (sec.cloudapps.cisco.com) sec.cloudapps.cisco.com
Vulnerability records
- CVE.org record CVE-2014-2120 cve.org
- NVD entry CVE-2014-2120 nvd.nist.gov
Government
Other references from the CVE record and advisory
All exploited Cisco vulnerabilities · Today’s Security Digest