← Back
CVE-2026-53137
high
CVSS 7.8
Out-of-Bounds Write in linux (CVE-2026-53137)
Summary
out-of-bounds write in linux (CVE-2026-53137). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-53137** has been found in linux.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-53137" on the vendor's site.
CVE-2026-53137 (linux) — CWE-787 / CVSS v3 7.8
Attack vector: local / 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
**out-of-bounds write** (CWE-787) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 7.8/10). 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://nvd.nist.gov/vuln/detail/CVE-2026-53137
- web https://git.kernel.org/stable/c/1906064d50d194a145486e5caf3db3e708b6f6ef
- web https://git.kernel.org/stable/c/3c4444aec06c74fbc05661f370954ac814963c38
- web https://git.kernel.org/stable/c/79e0273272a05fb26f9b1e55bf1a52eefc3b7b35
- web https://git.kernel.org/stable/c/91fb41218c413989d8b6c837748751454b452d68
- web https://git.kernel.org/stable/c/964e50ef7b8f09815a7d05b8326af700f8d5bc96
- web https://git.kernel.org/stable/c/98cfb7530ea91d8e5e928285cdce58e1131f6e83
- web https://git.kernel.org/stable/c/bfba882cfcd08f6540f72f48e786b6404f5d2c5b
- web https://git.kernel.org/stable/c/f0f3981c43b32cadfe373d636d9e9ca522bb3702
- web https://github.com/advisories/GHSA-36gr-gw56-g35v