Remote Code Execution Vulnerability in ClamAV 7z File Format Parser
CVE-2026-20215

7.5HIGH

Key Information:

Vendor

Cisco
Status
Cisco Secure Endpoint
Vendor
CVE Published:
1 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-20215?

A vulnerability exists in the 7z file format parser within ClamAV, which may allow an unauthorized remote attacker to exploit improper boundary checks. This flaw could lead to out-of-bounds buffer writes when scanning specifically crafted 7z files, potentially resulting in a Denial of Service (DoS) situation. Attackers can disrupt the ClamAV scanning process, causing it to terminate unexpectedly, thus impairing the software's ability to perform its intended security functions.

Affected Version(s)

Cisco Secure Endpoint 7.0.5

Cisco Secure Endpoint 6.2.19

Cisco Secure Endpoint 7.3.3

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

.