CVE-2026-20244
A remote, anonymous attacker can exploit multiple vulnerabilities in ClamAV to conduct a denial of service attack or disclose confidential information.
CSIRTS triage
- What
- Multiple vulnerabilities can lead to denial of service attacks or disclose confidential information.
- Who is affected
- Deployments of ClamAV.
- Urgency
- Remediation is medium urgency as the vulnerabilities are not currently exploited.
- Action
- Update to the latest version of ClamAV.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Advisory coverage (9)
- medium[UPDATE] [medium] ClamAV: Multiple vulnerabilitiescert-bund · 2026-07-22
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 15, 2026)cert-fr-avis · 2026-07-15
- highCVE-2026-20244: ClamAV DMG File Processing Denial of Service Vulnerabilitymsrc · 2026-07-14
- unknownUSN-8517-1: ClamAV vulnerabilitiesubuntu · 2026-07-08
- highClamAV Vulnerabilities Affecting Cisco Products: July 2026cisco-psirt · 2026-07-02
- unknownMultiple vulnerabilities in ClamAV (July 2, 2026)cert-fr-avis · 2026-07-02
- unknownMultiple vulnerabilities in Cisco products (July 2, 2026)cert-fr-avis · 2026-07-02
- highCVE-2026-20244: A vulnerability in the DMG file format parser of ClamAV could allow an unauthenticated, remote…nvd · 2026-07-01
- highCisco Advance Notification for Publication of July 1, 2026, Security Advisoriescisco-psirt · 2026-07-01
External references
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