CVE-2025-20128

Published Jan 22, 2025

Last updated 4 days ago

Overview

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.
Source
psirt@cisco.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.3
Impact score
1.4
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Severity
MEDIUM

Weaknesses

psirt@cisco.com
CWE-122

Social media

Hype score
Not currently trending
  1. 🟡Cisco fixes a critical ClamAV DoS vulnerability (CVE-2025-20128), but a PoC exploit is now public. Remote attackers could crash ClamAV using a crafted OLE2 file. -Update ASAP or isolate affected devices. 🔗 Details: https://t.co/dPySqWObU4 #CyberSecurity #InfoSec #Osec

    @Osec__

    5 Feb 2025

    12 Impressions

    0 Retweets

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  2. برای آنتی‌ ویروس ClamAV که یک آنتی ویروس open source می باشد ، آسیب پذیری با کد شناسایی CVE-2025-20128 از نوع Buffer overflow منتشر شده است. آسیب پذیری شناسایی شده باعث crash شدن این برنامه و به عبارتی موجب نوعی حمله DOS می شود. https://t.co/Poz3aKY03t https://t.co/SCw2XndVZM

    @AmirHossein_sec

    30 Jan 2025

    31 Impressions

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  3. به تازگی برای آنتی‌ ویروس ClamAV که یک آنتی ویروس open source می باشد ، آسیب پذیری با کد شناسایی CVE-2025-20128 از نوع Buffer overflow منتشر شده است. آسیب پذیری شناسایی شده باعث crash شدن این برنامه و از کار افتادن سرویس مربوطه می شود و به عبارتی موجب نوعی حمله DOS می شود.

    @cybernetic_cy

    26 Jan 2025

    93 Impressions

    2 Retweets

    5 Likes

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  4. 🌐 Bulletin d'Actualités - 24 janvier 2025 🔗 À lire ici : https://t.co/7iulrYYVuM 🔒 Vulnérabilités : ClamAV : DoS (CVE-2025-20128). phpMyAdmin : XSS. Node.js : Patch critique (CVE-2025-23083). ✨ Découvrir : Baleen : WAF/CDN 🇫🇷 Sommet IA à Paris, 10-11 février.

    @CERT_Illicium

    24 Jan 2025

    16 Impressions

    1 Retweet

    1 Like

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  5. A vulnerability (CVE-2025-20128) in ClamAV's OLE2 file decryption could enable unauthenticated remote attackers to cause DoS. Cisco has released patches. Update systems urgently. 🛡️ #ClamAV #DenialOfService #USA link: https://t.co/gW1pFXw1Zv https://t.co/47TuTalYEI

    @TweetThreatNews

    24 Jan 2025

    40 Impressions

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    1 Like

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  6. 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 heap-based buffer overflowweakness in the Object Linking and Embedding 2 (OLE2)

    @thecyberreport_

    23 Jan 2025

    58 Impressions

    1 Retweet

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  7. ClamAVのDoS脆弱性CVE-2025-20128に対応するPoC(攻撃の概念実証コード)が公表されている。OLE2復号ルーチンにおけるヒープベースのバッファオーバーフロー。シスコ社によると、自社製品においてはシステム全体の安定性が影響を受けることはない。実際の攻撃は未確認。 https://t.co/FwP0oRSCJd

    @__kokumoto

    23 Jan 2025

    755 Impressions

    3 Retweets

    3 Likes

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  8. Exploring Cisco's Denial of Service Flaw: CVE-2025-20128 https://t.co/kNAut34DRy #cve202520128 #clamav #denialofservice #cybersecurity #vulnerability #bufferoverflow #cisco #infosec #securityupdate #exploit

    @DefendOpsHQ

    22 Jan 2025

    11 Impressions

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  9. Cisco addresses a denial-of-service vulnerability (CVE-2025-20128) in ClamAV, potentially allowing attackers to crash the antivirus. No active exploits reported. 🔒🔧 #Cisco #ClamAV #USA link: https://t.co/YH51UBSQPL https://t.co/fdmjJ9JpKm

    @TweetThreatNews

    22 Jan 2025

    47 Impressions

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