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Vulnerability details: VCID-ged8-dga7-tqcq
Vulnerability ID VCID-ged8-dga7-tqcq
Aliases CVE-2024-20506
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 5.5
Risk 2.8
Affected and Fixed Packages Package Details
Weaknesses (1)
System Score Found at
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2024-20506
cvssv3.1 6.1 https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html
ssvc Track https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2024-20506
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Found at https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none


Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-05T13:34:43Z/ Found at https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2024-20506
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Exploit Prediction Scoring System (EPSS)
Percentile 0.09976
EPSS Score 0.00037
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:46:13.276170+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/7011-1/ 37.0.0