PT-2026-54708 · Cisco · Cisco Secure Endpoint

Barteq + 2 · Publicado 2026-07-01 · Atualizado 2026-07-02 · CVE-2026-20243

NVD

CVSS v3.1

7.5

Alta

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

A vulnerability in the ALZ file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device.

This vulnerability is due to improper boundary checks for content in ALZ files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains ALZ content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

Correção

Buffer Overflow

Enumeração de Fraquezas

CWE-120

Identificadores relacionados

CVE-2026-20243

Produtos afetados

Cisco Secure Endpoint

Referências · 3

• https://twitter.com/techepages/status/2072614506300420195 · Publicação no Twitter
• https://nvd.nist.gov/vuln/detail/CVE-2026-20243 · Nota de Segurança
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-88cFYyxR · Aviso do Fabricante