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Critical· 9.8official fix available

CVE-2024-50154

A critical use-after-free vulnerability in the Linux kernel's TCP/DCCP implementation (CVE-2024-50154) allows attackers to exploit a race condition in timer handling, potentially leading to system crashes or privilege escalation. The fix involves removing a problematic timer check to prevent memory corruption.

publishedNov 7, 2024
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
15th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 3, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Systems running Linux kernel versions 6.12

02

Real-world impact

Could allow attackers to trigger memory corruption via crafted network traffic, potentially leading to denial of service or code execution.

03

Why this severity

CVSS 9.8 (critical): High confidence in exploitability and severe impact on system stability/security.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade to a Linux kernel version that includes commit 83fccfc3940c (or later) to apply the fix.
  2. 02Verify the kernel version after upgrade using `uname -r` or `cat /etc/os-release`.

NVD description and kernel commit 83fccfc3940c

05

Timeline

  1. Nov 7, 2024 · Nov 7, 2024
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Aug 4, 2026 · 2d ago
    Advisory updated
    The NVD record was last revised.
  3. Aug 4, 2026 · 1d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →