Memory Corruption Vulnerability in ClamAV's GPT File Format Parser
CVE-2026-20345

7.5HIGH

Key Information:

Vendor

Cisco
Status
Cisco Secure Endpoint
Vendor
CVE Published:
7 August 2026

Badges

👾 Exploit Exists

What is CVE-2026-20345?

A vulnerability exists in the GPT file format parser of ClamAV that allows an unauthenticated remote attacker to trigger a denial-of-service (DoS) condition through crafted GPT files. The issue stems from improper handling of endian conversion, which can lead to out-of-bounds buffer writes. Exploiting this vulnerability can cause the scanning process of ClamAV to terminate unexpectedly, disrupting the service on the affected device.

Affected Version(s)

Cisco Secure Endpoint 1.12.3

Cisco Secure Endpoint 1.8.0

Cisco Secure Endpoint 1.11.1

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
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

.