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CVE-2025-71162
high
CVSS 7.8
Use-After-Free in linux (CVE-2025-71162)
Summary
vulnerability in linux (CVE-2025-71162). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-71162** 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-2025-71162" on the vendor's site.
CVE-2025-71162 (linux) — CWE-416 / 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
**use-after-free** (CWE-416) 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
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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://git.kernel.org/stable/c/2efd07a7c36949e6fa36a69183df24d368bf9e96
- web https://git.kernel.org/stable/c/59cb421b0902fbef2b9512ae8ba198a20f26b41f
- web https://git.kernel.org/stable/c/5f8d1d66a952d0396671e1f21ff8127a4d14fb4e
- web https://git.kernel.org/stable/c/76992310f80776b4d1f7f8915f59b92883a3e44c
- web https://git.kernel.org/stable/c/ae3eed72de682ddbba507ed2d6b848c21a6b721e
- web https://git.kernel.org/stable/c/be655c3736b3546f39bc8116ffbf2a3b6cac96c4
- web https://git.kernel.org/stable/c/cb2c9c4bb1322cc3c9984ad17db8cdd2663879ca
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-71162
- web https://github.com/advisories/GHSA-g96x-q37f-x894