Riskcovery

CVE-2025-20219

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Bypass Vulnerability

State
Published
Severity
5.3 Medium
Published
Aug 14, 2025
Updated
Aug 14, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

Description

A vulnerability in the implementation of access control rules for loopback interfaces in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to send traffic that should have been blocked to a loopback interface.

This vulnerability is due to improper enforcement of access control rules for loopback interfaces. An attacker could exploit this vulnerability by sending traffic to a loopback interface on an affected device. A successful exploit could allow the attacker to bypass configured access control rules and send traffic that should have been blocked to a loopback interface on the device.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Ncisco

Weaknesses

Affected Products

ProductVersions
Cisco Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.18.2Affected
  • 9.18.2.5Affected
  • 9.18.2.7Affected
  • 9.19.1Affected
  • 9.18.2.8Affected
  • 9.18.3Affected
  • 9.19.1.5Affected
  • 9.19.1.9Affected
  • 9.18.3.39Affected
  • 9.19.1.12Affected
  • 9.18.3.46Affected
  • 9.19.1.18Affected
  • 9.18.3.53Affected
  • 9.18.3.55Affected
  • 9.18.3.56Affected
  • 9.20.1Affected
  • 9.19.1.22Affected
  • 9.18.4Affected
  • 9.20.1.5Affected
  • 9.18.4.5Affected
  • 9.19.1.24Affected
  • 9.18.4.8Affected
  • 9.20.2Affected
  • 9.19.1.27Affected
  • 9.18.4.22Affected
  • and 19 more versions
Cisco Firepower Threat Defense SoftwareCisco
  • 7.3.0Affected
  • 7.3.1Affected
  • 7.3.1.1Affected
  • 7.4.0Affected
  • 7.4.1Affected
  • 7.4.1.1Affected
  • 7.3.1.2Affected
  • 7.6.0Affected
  • 7.4.2Affected
  • 7.4.2.1Affected

References

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