Cisco Adaptive Security Appliance (ASA) Cross-Site Scripting (XSS) Vulnerability
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.
- Vendor
- Cisco
- Product
- Adaptive Security Appliance (ASA)
- CVSS
- 6.1
- EPSS (exploit probability)
- 22.6%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2014-2120 being exploited?
Yes. CISA added CVE-2014-2120 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 22.6% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2014-2120 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Cisco Adaptive Security Appliance (ASA) CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2016-6367 Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability | [ HIGH ] | 7.8 | 22.6% | |
| CVE-2016-6366 Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability | [ HIGH ] | 8.8 | 87.6% | |
| CVE-2018-0296 Cisco Adaptive Security Appliance (ASA) Denial-of-Service Vulnerability | [ HIGH ] | 7.5 | 99.9% |