A vulnerability in the Mach-O file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in Mach-O files during scanning, which may result in an out-of-bounds buffer read. An attacker could exploit this vulnerability by submitting a crafted Mach-O file 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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade clamav | Aug 13, 2026 | Aug 7, 2026 |
| Amazon_linux_2023 | — | Upgrade clamav1.4-freshclamUpgrade clamav1.4-debugsourceUpgrade clamav1.4-dataUpgrade clamav1.4-docUpgrade clamav1.4-libUpgrade clamav1.4-lib-debuginfoUpgrade clamav1.5-lib-debuginfoUpgrade clamav1.5-freshclam-debuginfoUpgrade clamd1.5Upgrade clamd1.5-debuginfoUpgrade clamav1.5Upgrade clamav1.5-libUpgrade clamav1.5-docUpgrade clamd1.4-debuginfoUpgrade clamav1.4-develUpgrade clamav1.5-milter-debuginfoUpgrade clamav1.4-milter-debuginfoUpgrade clamav1.5-debugsourceUpgrade clamd1.4Upgrade clamav1.5-filesystemUpgrade clamav1.5-develUpgrade clamav1.4-milterUpgrade clamav1.4Upgrade clamav1.5-debuginfoUpgrade clamav1.5-dataUpgrade clamav1.4-debuginfoUpgrade clamav1.5-milterUpgrade clamav1.5-freshclamUpgrade clamav1.4-freshclam-debuginfoUpgrade clamav1.4-filesystem | Sep 1, 2026 | Aug 7, 2026 |
| Ubuntu | — | Upgrade clamav | Sep 21, 2026 | Aug 7, 2026 |
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