CVE-2025-21964

MEDIUM EPSS 6.1%
Published Apr 1, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 1, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix integer overflow while processing acregmax mount option User-provided mount parameter acregmax 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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-190 Integer Overflow or Wraparound Numeric Error

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥5.12  –  <5.15.180
linuxlinux_kernel*≥5.16  –  <6.1.132
linuxlinux_kernel*≥6.2  –  <6.6.84
linuxlinux_kernel*≥6.7  –  <6.12.20
linuxlinux_kernel*≥6.13  –  <6.13.8
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6cc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a13351624a6af8d91398860b8c9d4cf6c8e63de5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027b
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6cc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a13351624a6af8d91398860b8c9d4cf6c8e63de5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027b
    Patch