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CVE-2026-64563
high
CVSS 7.8
Vulnerability in c (CVE-2026-64563)
Summary
vulnerability in c (CVE-2026-64563). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-64563** 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-2026-64563" on the vendor's site.
CVE-2026-64563 (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/3ff7c1dbf722cf3fa538672452ba182318e0fcc3
- web https://git.kernel.org/stable/c/4169d9fb92f313ff8e7e83d733c1ecdcc93eebd3
- web https://git.kernel.org/stable/c/8173f7e2ce67e6ca1d4763f3da14e5b01ce77456
- web https://nvd.nist.gov/vuln/detail/CVE-2026-64563
- web https://github.com/advisories/GHSA-8g97-85g6-9whw
- web https://git.kernel.org/stable/c/042fda5c088015f18838e5c692659a7be60aeb26
- web https://git.kernel.org/stable/c/c39643ad99fea749be50615550e8f0e6d6e60694
- web https://git.kernel.org/stable/c/0955b65c2b47c30b439e2cf1b1e375073aa0413a
- web https://git.kernel.org/stable/c/a0406c40c6638c5ae50257db6297b2fba6c9ba16
- web https://git.kernel.org/stable/c/ba510b5e9fe396497d31162acb579f210adfe6c8