Access Control Vulnerability in Cisco Secure Firewall Products
CVE-2025-20219

5.3MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Adaptive Security Appliance (asa) Software
Cisco Firepower Threat Defense Software
Vendor
CVE Published:
14 August 2025

Badges

👾 Exploit Exists

What is CVE-2025-20219?

The vulnerability arises from the inadequate enforcement of access control rules for loopback interfaces in Cisco Secure Firewall ASA and FTD Software. An unauthenticated remote attacker can exploit this flaw to send unauthorized traffic that should typically be blocked. This could enable the attacker to infect or manipulate network conditions by accessing restricted communication paths, thereby compromising the security posture of the affected Cisco devices.

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Affected Version(s)

Cisco Adaptive Security Appliance (ASA) Software 9.18.2

Cisco Adaptive Security Appliance (ASA) Software 9.18.2.5

Cisco Adaptive Security Appliance (ASA) Software 9.18.2.7

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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