What’s Vulnerable › Vulnerabilities

CVE-2024-44945: netfilter: nfnetlink: Initialise extack before use in ACKs

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-31 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink: Initialise extack before use in ACKs Add missing extack initialisation when ACKing BATCH_BEGIN and BATCH_END.

Affected products

• Linux kernel: from 6.10 before 6.10.7; 6.11-rc1, 6.11-rc2, 6.11-rc3 — fixed in 6.10.7

How to fix

Upgrade to a fixed version: Linux kernel 6.10.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3e03b536d9454c5802168b9e85248d456d3ff6a3
• https://git.kernel.org/stable/c/d1a7b382a9d3f0f3e5a80e0be2991c075fa4f618

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