CVE-2026-53211

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register NFT_META_BRI_IIFHWADDR declares its destination register with len = ETH_ALEN (6 bytes), which the register-init tracking rounds up to two 32-bit registers (8 bytes). nft_meta_bridge_get_eval() then does memcpy(dest, br_dev->dev_addr, ETH_ALEN), writing only 6 bytes and leaving the upper 2 bytes of the second register as uninitialised nft_do_chain() stack. A downstream load of that register span leaks those stale bytes to userspace. Zero the second register before the memcpy so the full declared span is written.

• CWE-401

• https://git.kernel.org/stable/c/07acb9798477535933bd658ac9fa85b6cb10d995Patch
• https://git.kernel.org/stable/c/c7d573551f9286100a055ef696cde6af54549677Patch
• https://git.kernel.org/stable/c/f1e81d571e375d10e50e852223593493d98c1bacPatch

Published

Jun 25, 2026

Last Modified

Jul 2, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-53206In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53207In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53208In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53209In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-5321A flaw has been found in vanna-ai vanna up to 2.0.2. Affecte…4.3
• CVE-2026-53210In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53212In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-53213In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53214In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2026-53215In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-53216In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-53217In the Linux kernel, the following vulnerability has been re…8.6