VDB

DEBIAN-CVE-2025-21963

DEBIAN-CVE-2025-21963 PUBLISHED CVSS 5.5 MEDIUM

Record from OSV · Published April 1, 2025

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acdirmax mount option User-provided mount parameter acdirmax of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
linuxDebian:126.1.133-1
linuxDebian:146.12.20-1
linuxDebian:136.12.20-1

Risk scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersions
Debian:12linux6.1.99-1, 0, 6.1.106-1
Debian:14linux0
Debian:13linux0

Timeline

  • Apr 1, 2025 CVE Published
  • Sep 1, 2026 CVE Updated

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln DEBIAN-CVE-2025-21963
vulnetix vdb fixes DEBIAN-CVE-2025-21963

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/DEBIAN-CVE-2025-21963/fixes/registry"

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