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CVE-2026-52962
high
CVSS 7.8
Out-of-Bounds Write in linux (CVE-2026-52962)
Summary
out-of-bounds write in linux (CVE-2026-52962). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-52962** 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-2026-52962" on the vendor's site.
CVE-2026-52962 (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。
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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-2026-52962
- web https://git.kernel.org/stable/c/3fa13ceefbc5f36131110342743994cb3de80637
- web https://git.kernel.org/stable/c/4bfdcefdaa6092a06cacd59389c7756b36e6de8c
- web https://git.kernel.org/stable/c/521e5aba857fd267624892c8dd6295f22ce0267e
- web https://git.kernel.org/stable/c/5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e
- web https://git.kernel.org/stable/c/7d3e8d2d648d5f0df29b4710246680f47695fe94
- web https://git.kernel.org/stable/c/bc7abce4460e490dcb579eec770f175b150b685f
- web https://git.kernel.org/stable/c/d0cb994605c84a159c1d00d72cdc8583c321ef95
- web https://git.kernel.org/stable/c/ecf94823c5c6a20790bb76ed2816822b0beb0c22
- web https://github.com/advisories/GHSA-2p2x-px9w-6j23