CVE-2024-20506

mediumpriority · track · 24EPSS 0.003 · 25 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (25th) EPSS

CVSS 6.1 · medium

Is it mine?

48 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A vulnerability in the ClamD service module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an authenticated, local attacker to corrupt critical system files. The vulnerability is due to allowing the ClamD process to write to its log file while privileged without checking if the logfile has been replaced with a symbolic link. An attacker could exploit this vulnerability if they replace the ClamD log file with a symlink to a critical system file and then find a way to restart the ClamD process. An exploit could allow the attacker to corrupt a critical system file by appending ClamD log messages after restart.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 4.2

v3.16.1mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hsecondary · FSTEC (BDU) RU

v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hsecondary · ENISA EU

v3.16.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hsecondary · psirt@cisco.com USexploitability 1.8 · impact 4.2

v3.15.6mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-754USprimaryCWE-754US

affected products (48)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source ClamAV <0.103.12all versionscert_bundDE
Open Source ClamAV <1.0.7all versionscert_bundDE
Open Source ClamAV <1.3.2all versionscert_bundDE
Open Source ClamAV <1.4.1all versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source ClamAV< 0.103.12cert_bundDE
Open Source ClamAV< 1.0.7cert_bundDE
Open Source ClamAV< 1.3.2cert_bundDE
Open Source ClamAV< 1.4.1cert_bundDE
Cisco clamav≤ 1.4.0enisa_euvdEU
Cisco clamav≤ 0.103.2enisa_euvdEU
Cisco clamav≤ 0.103.6enisa_euvdEU
Cisco clamav≤ 0.103.8enisa_euvdEU
Cisco clamav≤ 1.3.2enisa_euvdEU
Cisco clamav≤ 1.2.xenisa_euvdEU

showing 20 of 48

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-2051ClamAV: Mehrere Schwachstellen ermöglichen Denial of Service und DateimanipulationDeutsch2024-09-04csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in ClamAV ausnutzen, um einen Denial of Service Angriff durchzuführen und Dateien zu manipulieren.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2024-09-04modified 2026-06-17

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Related entries.

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references (6)

External citations — patches, advisories, analysis.

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