How severe is CVE-2014-2120?

CVE-2014-2120 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2014-2120?

Affected package information for CVE-2014-2120 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2014-2120?

No fixed version has been published for CVE-2014-2120 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2014-2120 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2014-2120, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2014-2120?

CVE-2014-2120 has an EPSS (Exploit Prediction Scoring System) score of 75.1%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2014-2120 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2014-2120 (Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2024-11-12. CISA required all US federal civilian agencies to remediate this vulnerability by 2024-12-03. The required action was: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2014-2120?

CVE-2014-2120 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2014-2120?

CVE-2014-2120 affects cisco adaptive security appliance software. Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2014-2120 published, and has it been updated?

CVE-2014-2120 was published on March 19, 2014 and was last updated on April 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2024-11-12 — agencies required to remediate by 2024-12-03

CVE-2014-2120

MEDIUM

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…

Published

Mar 19, 2014

Updated

Apr 21, 2026

Affected

0 pkgs

Patched

None yet

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

75.1%probability of exploitation in next 30 days

Very High Risk99th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Affected Products

1 product · 1 configurations

adaptive security appliance softwarecisco

all

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Cross-site scripting (XSS) vulnerability in the WebVPN login page in Cis…

cisa.govCISANov 2024

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2014-2120 in your stack?

O3 detects CVE-2014-2120 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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