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CVE-2025-39913
high
CVSS 7.8
Vulnerability in c (CVE-2025-39913)
Summary
vulnerability in c (CVE-2025-39913). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-39913** has been found in c.
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 "c CVE-2025-39913" on the vendor's site.
CVE-2025-39913 (c) — 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
**A vulnerability** (unclassified) exists in c.
📍 Affected scope
c — .
🔥 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 'c' .` 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 'c' . | 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 `c` 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/05366527f44cf4b884f3d9462ae8009be9665856
- web https://git.kernel.org/stable/c/08f58d10f5abf11d297cc910754922498c921f91
- web https://git.kernel.org/stable/c/539920180c55f5e13a2488a2339f94e6b8cb69e0
- web https://git.kernel.org/stable/c/66bcb04a441fbf15d66834b7e3eefb313dd750c8
- web https://git.kernel.org/stable/c/7429b8b9bfbc276fd304fbaebc405f46b421fedf
- web https://git.kernel.org/stable/c/9c2a6456bdf9794474460d885c359b6c4522d6e3
- web https://git.kernel.org/stable/c/a3967baad4d533dc254c31e0d221e51c8d223d58
- web https://git.kernel.org/stable/c/de89e58368f8f07df005ecc1c86ad94898a999f2
- web https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- web https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-39913
- web https://github.com/advisories/GHSA-36qj-697h-rh8p