CVE-2026-20337
ClamAV ZIP File Format Processing Memory Corruption Vulnerability
CVE-2026-20337 is fixed in 9 products on 1 platform, first by clamav 1.5.4+dfsg-0ubuntu0.22.04.1, released August 7, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0060
49th percentile
Improper boundary checks for content in zip archive parser (bsc#1274597).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| clamav · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav · opensuse-leap 16.0 | 1.5.4-160000.1.1 | OPENSUSE-SU-2026:21831-1 | Sep 11, 2026 |
| clamav · sles 15.6 | 1.5.4-150600.18.31.1 | SUSE-SU-2026:4180-1 | Sep 14, 2026 |
| clamav · sles 15.7 | 1.5.4-150600.18.31.1 | SUSE-SU-2026:4180-1 | Sep 14, 2026 |
| clamav · sles 16.0 | 1.5.4-160000.1.1 | SUSE-SU-2026:23727-1 | Sep 11, 2026 |
| clamav-base · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-base 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-base · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-base 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-base · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-base 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav-daemon · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-daemon 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-daemon · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-daemon 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-daemon · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-daemon 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav-docs · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-docs 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-docs · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-docs 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-docs · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-docs 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav-freshclam · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-freshclam 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-freshclam · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-freshclam 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-freshclam · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-freshclam 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav-milter · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-milter 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-milter · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-milter 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-milter · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-milter 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamav-testfiles · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamav-testfiles 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamav-testfiles · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamav-testfiles 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamav-testfiles · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamav-testfiles 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| clamdscan · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | clamdscan 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| clamdscan · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | clamdscan 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| clamdscan · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | clamdscan 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
| libclamav12 · Ubuntu 22.04.1 LTS (jammy) | 1.5.4+dfsg-0ubuntu0.22.04.1 | libclamav12 1.5.4+dfsg-0ubuntu0.22.04.1 | Aug 7, 2026 |
| libclamav12 · Ubuntu 24.04.5 LTS (noble) | 1.5.4+dfsg-0ubuntu0.24.04.1 | libclamav12 1.5.4+dfsg-0ubuntu0.24.04.1 | Aug 7, 2026 |
| libclamav12 · Ubuntu 26.04.1 LTS (resolute) | 1.5.4+dfsg-0ubuntu0.26.04.1 | libclamav12 1.5.4+dfsg-0ubuntu0.26.04.1 | Aug 7, 2026 |
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