CVE-2025-20234

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Source
https://cve.org/CVERecord?id=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
CLSA (2)
DEBIAN (1)
MINI (1)
openSUSE (1)
SUSE (3)
UBUNTU (1)
Related
openSUSE (1)
SUSE (3)
Published
2025-06-18T17:15:28Z
Modified
2026-07-10T03:06:44Z
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 .

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpes":  [
                "cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:*",
                "cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:*",
                "cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:*"
            ],
            "extracted_events":  [
                {
                    "fixed":  "1.26.1"
                },
                {
                    "fixed":  "1.26.1"
                },
                {
                    "fixed":  "7.5.21"
                },
                {
                    "introduced":  "8.0.1.21160"
                },
                {
                    "fixed":  "8.4.5"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "cisco:secure_endpoint"
        },
        {
            "cpes":  [
                "cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "fixed":  "4.2.2"
                }
            ],
            "source":  "CPE_RANGE",
            "vendor_product":  "cisco:secure_endpoint_private_cloud"
        }
    ]
}
References

Affected packages

Git / github.com/cisco-talos/clamav

Affected ranges

Type
GIT
Repo
https://github.com/cisco-talos/clamav
Events
Introduced
7d26bc8f6a801bb35ff7f2b154f33817e5863ea6
Fixed
d8b053865fd5995f7af98bfbcd98c9a5644bfe2b
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "1.2.0"
        },
        {
            "fixed":  "1.4.3"
        }
    ],
    "source":  "CPE_RANGE"
}

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

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-20234.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "190015530276357700342780865688785711289",
                "90010761790201096885469837227264413727",
                "54157981050440576534464352548040004529",
                "229169483082172892455379641560317814455"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2025-20234-18de29da",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/cisco-talos/clamav/commit/d8b053865fd5995f7af98bfbcd98c9a5644bfe2b",
        "target":  {
            "file":  "libclamav/bytecode_api.h"
        }
    }
]
vanir_signatures_modified 
"2026-07-10T03:06:44Z"