← Back
CVE-2026-64113
critical
CVSS 9.8
Use-After-Free in linux (CVE-2026-64113)
Summary
vulnerability in linux (CVE-2026-64113). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-64113** has been found in linux.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-64113" on the vendor's site.
CVE-2026-64113 (linux) — CWE-416 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**use-after-free** (CWE-416) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'linux' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'linux' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `linux` を grep し、稼働しているサービス・バージョンを把握する。
-
7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
References
- web https://git.kernel.org/stable/c/3d931ac62411a7e43b85dba5fe45e1a4a91bd5cb
- web https://git.kernel.org/stable/c/55b3e91d62b2f7a24109b2d7c9f4c66d2e3b1ec1
- web https://git.kernel.org/stable/c/5d49b568c188dc77199d8d2b959c91da8cc27cf1
- web https://git.kernel.org/stable/c/6ef30384a50a50e4a484cddf341bc27de31aa3de
- web https://git.kernel.org/stable/c/a244395d8c563ed1bb26c3ef708db6aeeaa08084
- web https://git.kernel.org/stable/c/add70e2682c0ad3be2a5810bcf1bc13963ba4df9
- web https://git.kernel.org/stable/c/dfef79e09ed2f5df975c98547f97f5d7f8982a24
- web https://git.kernel.org/stable/c/e8768bcbe5cd30c4ea36a22022c9ffaa66903693
- web https://nvd.nist.gov/vuln/detail/CVE-2026-64113
- web https://github.com/advisories/GHSA-gwhj-73cj-phr2