CVE-2020-3580

Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability

Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)Network & edge

CVSS

6.1Medium

ExploitationExploited in the wildAdded to KEV 3 Nov 2021. Known ransomware useCISA KEV

Exploit odds (EPSS)85.6%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version. Check the vendor advisory below

Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV

CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

21 Oct 2020, 18:40 UTCPublishedCVE List
3 Nov 2021Added to CISA KEVCISA KEV

Public exploit code and templates 1

Scanner templateCisco ASA/FTD Software - Cross-Site ScriptingNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an insufficient input validation vulnerability for user-supplied input by the web services interface. Successful exploitation could allow an attacker to perform cross-site scripting (XSS) in the context of the interface or access sensitive browser-based information.

Text from CVE List

Affected versions 1

Cisco Adaptive Security Appliance (ASA) Softwareaffected: n/aCVE List