CVE catalog
CVE-2025-20128
ClamAV vulnerability
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.83% · Oct 25, 2026
A vulnerability in the Object Linking and Embedding 2 (OLE2) decryption routine of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer underflow in a bounds check that allows for a heap buffer overflow read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software. For a description of this vulnerability, see the . Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | clamav | sid | 1.4.6+dfsg-1 | fixed |
| Debian | clamav | forky | 1.4.6+dfsg-1 | fixed |
| Debian | clamav | trixie | 1.4.3+dfsg-1 | fixed |
| Debian | clamav | bookworm | 1.4.3+dfsg-1~deb12u2 | fixed |
| Debian | clamav | bookworm-security | 1.4.6+dfsg-0+deb12u1 | fixed |
| Ubuntu | clamav | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-base | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-daemon | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-docs | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-freshclam | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-milter | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav-testfiles | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamdscan | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | libclamav-dev | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | libclamav11t64 | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav | 24.04 | 1.0.2+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.3+dfsg-2ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.4+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1.1ubuntu2 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1.1ubuntu3 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.7+dfsg-0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
| Ubuntu | clamav | 24.04 | 1.0.2+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.3+dfsg-2ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.4+dfsg-0ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1.1ubuntu2 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.5+dfsg-1.1ubuntu3 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.7+dfsg-0ubuntu0.24.04.1 | vulnerable |
| Ubuntu | clamav | 24.04 | 1.0.8+dfsg-0ubuntu0.24.04.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | clamav | source | sid | 1.4.2+dfsg-1 | not yet assigned | Not reported | [1093880] |
| Debian | clamav | source | forky | 1.4.2+dfsg-1 | not yet assigned | Not reported | [1093880] |
| Debian | clamav | source | trixie | 1.4.2+dfsg-1 | not yet assigned | Not reported | [1093880] |
| Debian | clamav | source | bookworm | 1.0.9+dfsg-1~deb12u1 | not yet assigned | Not reported | [1093880] |
| Ubuntu | clamav | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-base | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-daemon | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-docs | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-freshclam | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-milter | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav-testfiles | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamdscan | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | libclamav-dev | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | libclamav11t64 | deb | noble | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | Not reported | Not reported |
| Ubuntu | clamav | deb | 24.04 | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | UBUNTU-CVE-2025-20128 | Not reported |
| Ubuntu | clamav | deb | 24.04 | 1.0.8+dfsg-0ubuntu0.24.04.1 | Not reported | USN-7229-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [clamav]Fixed
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-base]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-daemon]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-doc]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-docs]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-freshclam]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-milter]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamav-testfiles]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [clamdscan]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [libclamav12]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
- [libclamav-dev]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.0.9+dfsg-1~deb12u1usn · clamav · debian · bookworm; usn · clamav · debian · 12
[Debian 13 (Trixie)]
- [clamav]Fixed
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-base]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-daemon]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-doc]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-docs]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-freshclam]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-milter]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamav-testfiles]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
- [clamdscan]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
1.4.2+dfsg-1usn · clamav · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_0325-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-20128]
- [https://osv.dev/vulnerability/DLA-4292-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-20128]
- [https://osv.dev/vulnerability/USN-7229-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-20128]
- [https://ubuntu.com/security/notices/USN-7229-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0177.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]