Vulnary
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Critical· 9.8official fix available

CVE-2026-64025

CVE-2026-64025 is a critical Linux kernel vulnerability where a race condition between BPF verdict processing and TLS receive operations could lead to a use-after-free error. The fix involves adding a guard to prevent conflicting data handling when TLS is active.

publishedJul 19, 2026
last modifiedJul 30, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
37th 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 Aug 19, 2026

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

01

Who is affected

Linux kernel users (no specific CPE listed)

02

Real-world impact

Potential use-after-free vulnerability could allow attackers to execute arbitrary code or crash systems.

03

Why this severity

CVSS 9.8 (critical): High confidence in exploitation and severe impact on confidentiality, integrity, and availability.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade your Linux kernel to a version that includes the fix for CVE-2026-64025 (patch applied in commit e91de6afa81c).
  2. 02Ensure all systems using the affected kernel component are updated to the patched version.

NVD description and Linux kernel commit e91de6afa81c

05

Timeline

  1. Jul 19, 2026 · 14d ago
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 20, 2026 · 13d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
  3. Jul 30, 2026 · 3d ago
    Advisory updated
    The NVD record was last revised.
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 →