Vulnary
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Critical· 9.8official fix available

CVE-2024-57882

A critical flaw in the Linux kernel’s MultiPath TCP (MPTCP) implementation can cause a crash when processing certain TCP options. The bug allows an attacker to trigger a kernel panic by sending malformed packets, potentially leading to denial of service. The issue has been fixed in recent kernel releases.

publishedJan 15, 2025
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

Linux kernel 6.13 and earlier versions that contain the unpatched MPTCP code. Typical users include servers and cloud instances running these kernels.

02

Real-world impact

An attacker could send crafted network packets to a vulnerable system, causing the kernel to crash and the machine to become unavailable. This could disrupt services or allow further exploitation if the crash is leveraged.

03

Why this severity

The CVSS score of 9.8 reflects the high impact of a kernel crash (complete loss of confidentiality, integrity, and availability) combined with no authentication or user interaction required.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade the Linux kernel to a version that includes the MPTCP TCP options overflow fix (e.g., 6.13 or later).
  2. 02Restart the system to ensure the new kernel is in use.

NVD description indicates the vulnerability has been resolved.

05

Timeline

  1. Jan 15, 2025 · Jan 15, 2025
    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 →