UpHeron
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Servers and applications

CVE-2020-3452

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021.

Severity
High 7.5
Published
22 Jul 2020
Last changed
11 Aug 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.8.4.20, 9.9.2.74, 9.10.1.42, 9.12.3.12, 9.13.1.10, 9.14.1.10
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • From 9.14 before 9.14.1.10
  • From 9.13 before 9.13.1.10
  • From 9.12 before 9.12.3.12
  • From 9.10 before 9.10.1.42
All 7 release lines
  • From 9.6 before 9.6.4.42
  • From 9.8 before 9.8.4.20
  • From 9.9 before 9.9.2.74
  • From 9.10 before 9.10.1.42
  • From 9.12 before 9.12.3.12
  • From 9.13 before 9.13.1.10
  • From 9.14 before 9.14.1.10

Known exploited

CISA name
Cisco ASA and FTD Read-Only Path Traversal Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
3 May 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-3452
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-3452