CVE Catalog

CVE-2026-74710

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

3th percentile - higher than 3% of all known CVEs

Summary

In the Linux kernel, AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs flags plus at least one eight-byte field. Such short metadata can let the kernel read beyond the registered area.

Risk Assessment

The vulnerability may lead to out-of-bounds memory read, potentially resulting in data disclosure or system crash.

Recommendation

Apply a Linux kernel update that requires at least 16 bytes of TX metadata in AF_XDP.

Other vulnerabilities in Linux kernel

See all
Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: xsk: require at least 16 bytes of TX metadata AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs the flags plus at least one eight-byte request field. Such short metadata also lets the kernel read beyond the registered area. Require 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve compatibility with applications that do not use launch-time metadata.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS