CVE-2025-20128
ClamAV OLE2 Denial of Service (DoS) Buffer Overflow Vulnerability
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.
INFO
Published Date :
Jan. 22, 2025, 5:15 p.m.
Last Modified :
Feb. 18, 2025, 8:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-20128.
| URL | Resource |
|---|---|
| https://blog.clamav.net/2025/01/clamav-142-and-108-security-patch.html | |
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-20128 vulnerability anywhere in the article.
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Help Net Security
Week in review: 48k Fortinet firewalls open to attack, attackers “vishing” orgs via Microsoft Teams
Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: 48,000+ internet-facing Fortinet firewalls still open to attack Despite last week’s confirmation of an ... Read more
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Help Net Security
Cisco fixes ClamAV vulnerability with available PoC and critical Meeting Management flaw
Cisco has released patches for a critical privilege escalation vulnerability in Meeting Management (CVE-2025-20156) and a heap-based buffer overflow flaw (CVE-2025-20128) that, when triggered, could t ... Read more
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security.nl
ClamAV-kwetsbaarheid kan virusscanner via malafide bestand laten crashen
Een kwetsbaarheid in antivirussoftware ClamAV maakt het mogelijk om de virusscanner via een malafide bestand te laten crashen. Ontwikkelaar Cisco heeft beveiligingsupdates uitgebracht om het probleem ... Read more
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The Hacker News
Cisco Fixes Critical Privilege Escalation Flaw in Meeting Management (CVSS 9.9)
Network Security / Vulnerability Cisco has released software updates to address a critical security flaw impacting Meeting Management that could permit a remote, authenticated attacker to gain adminis ... Read more
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BleepingComputer
Cisco warns of denial of service flaw with PoC exploit code
Cisco has released security updates to patch a ClamAV denial-of-service (DoS) vulnerability, which has proof-of-concept (PoC) exploit code. Tracked as CVE-2025-20128, the vulnerability is caused by a ... Read more
The following table lists the changes that have been made to the
CVE-2025-20128 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 18, 2025
Action Type Old Value New Value Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Removed CWE CWE-120 -
New CVE Received by [email protected]
Jan. 22, 2025
Action Type Old Value New Value 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-122 Added Reference https://blog.clamav.net/2025/01/clamav-142-and-108-security-patch.html Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 22, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-120
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-20128 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-20128
weaknesses.