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CVE-2026-80630
critical
CVSS 9.8
Vulnerability in c (CVE-2026-80630)
Summary
vulnerability in c (CVE-2026-80630). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-80630** has been found in c.
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 "c CVE-2026-80630" on the vendor's site.
CVE-2026-80630 (c) — 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
**A vulnerability** (unclassified) exists in c.
📍 Affected scope
c — .
🔥 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 '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
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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/0500af8630c3253f0dde879bd3a73a06bb2f2b3f
- web https://git.kernel.org/stable/c/097f6fc7b1ae362dd7a9444b2572162fda73b284
- web https://git.kernel.org/stable/c/20dd591d8f951e1e6aca5052be8785e6181055e2
- web https://git.kernel.org/stable/c/3e515188393e62a718ccebee651ee74514104ff6
- web https://git.kernel.org/stable/c/7c09843fd2b44d9bf0de798683861d1aecd62a08
- web https://git.kernel.org/stable/c/94a5f1efdefb01f82cd228bf4e7ef1e8fc075c80
- web https://git.kernel.org/stable/c/acc08a0c7f37ebb1901144e03a7cba7d4afd9203
- web https://git.kernel.org/stable/c/af54df2f44d9605614bc7ed96640302a240a9a62
- web https://nvd.nist.gov/vuln/detail/CVE-2026-80630
- web https://github.com/advisories/GHSA-x458-6j5f-w8xq