Vulnary
← back to the feed
Critical· 9.8official fix available

CVE-2024-50046

A critical bug in the Linux kernel’s NFSv4 code can cause a crash when certain files are copied on an NFS client. The flaw triggers a NULL‑pointer dereference, potentially allowing an attacker to crash the system. The issue has been fixed in newer kernel releases.

publishedOct 21, 2024
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
16th 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

Linux kernel, particularly versions 6.12 and earlier that run NFSv4 clients.

02

Real-world impact

An attacker could cause the affected system to crash, resulting in a denial of service and loss of availability.

03

Why this severity

The CVSS score of 9.8 reflects a critical vulnerability that is network‑exploitable, requires no user interaction or privileges, and can compromise confidentiality, integrity, and availability.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade the Linux kernel to a version that includes the patch for the NFSv4 NULL‑pointer dereference bug.
  2. 02Reboot the system to load the updated kernel.

NVD description indicates the vulnerability has been resolved.

05

Timeline

  1. Oct 21, 2024 · Oct 21, 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 →