CVE-2025-20234
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-20234
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-20234.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-20234
- Downstream
- Published
- 2025-06-18T17:15:28.833Z
- Modified
- 2025-11-20T12:32:55.753422Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A vulnerability in Universal Disk Format (UDF) processing 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 a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF 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 .
- References
Affected packages
Git / github.com/cisco-talos/clamav
Affected versions
clamav-1.*
clamav-1.2.0
clamav-1.3.0
clamav-1.3.0-rc
clamav-1.3.0-rc2
clamav-1.4.0
clamav-1.4.0-rc
clamav-1.4.1
clamav-1.4.2
Database specific
vanir_signatures
[
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"190015530276357700342780865688785711289",
"90010761790201096885469837227264413727",
"54157981050440576534464352548040004529",
"229169483082172892455379641560317814455"
]
},
"id": "CVE-2025-20234-18de29da",
"signature_type": "Line",
"source": "https://github.com/cisco-talos/clamav/commit/d8b053865fd5995f7af98bfbcd98c9a5644bfe2b",
"target": {
"file": "libclamav/bytecode_api.h"
}
}
]