CVE-2026-20244: ClamAV DMG File Processing Denial of Service Vulnerability
A vulnerability in the DMG 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.
Other sources
ClamAV DMG File Processing Denial of Service Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/clamavto a version that resolves this vulnerability.Fixed in 1.4.5+dfsg-2 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 1.5.3-1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20244?
CVE-2026-20244 has a high severity rating of 7.5.
What does CVE-2026-20244 affect?
CVE-2026-20244 affects ClamAV due to a vulnerability in the DMG file format parser.
How does CVE-2026-20244 impact systems?
CVE-2026-20244 can lead to a Denial of Service condition and may cause memory corruption.
Who can exploit CVE-2026-20244?
CVE-2026-20244 can be exploited by an unauthenticated, remote attacker.
How can CVE-2026-20244 be mitigated?
To mitigate CVE-2026-20244, update ClamAV to the latest version that resolves the vulnerability.