Description
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.
Published: 2025-01-22
Score: 5.3 Medium
EPSS: 1.6% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4292-1 clamav security update
EUVD EUVD EUVD-2025-2155 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.
Ubuntu USN Ubuntu USN USN-7229-1 ClamAV vulnerability
History

Mon, 03 Nov 2025 19:30:00 +0000

Type Values Removed Values Added
References

Wed, 06 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco secure Endpoint
Cisco secure Endpoint Private Cloud
Clamav
Clamav clamav
CPEs cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*
cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*
cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:*
cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:*
cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
Vendors & Products Cisco
Cisco secure Endpoint
Cisco secure Endpoint Private Cloud
Clamav
Clamav clamav

Tue, 18 Feb 2025 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120

Wed, 22 Jan 2025 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Jan 2025 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title ClamAV OLE2 File Format Decryption Denial of Service Vulnerability
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Cisco Secure Endpoint Secure Endpoint Private Cloud
Clamav Clamav
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2025-11-03T18:08:43.230Z

Reserved: 2024-10-10T19:15:13.212Z

Link: CVE-2025-20128

cve-icon Vulnrichment

Updated: 2025-11-03T18:08:43.230Z

cve-icon NVD

Status : Modified

Published: 2025-01-22T17:15:12.583

Modified: 2025-11-03T19:15:47.523

Link: CVE-2025-20128

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses