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CVE-2026-74563
high
CVSS 7.8
Vulnerability in c (CVE-2026-74563)
Summary
vulnerability in c (CVE-2026-74563). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-74563** 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-2026-74563" on the vendor's site.
CVE-2026-74563 (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/76dd48886eeeb5fcf2b837d2f4c3d17eebeac9ef
- web https://git.kernel.org/stable/c/78f75d632f74b8de0f081a128588f7c37d0d1164
- web https://git.kernel.org/stable/c/8398bc477d3cb3e2b018a5aaac2bec0f69acda30
- web https://git.kernel.org/stable/c/b1d480fce05f857dc438080cd8c9244b84a83494
- web https://git.kernel.org/stable/c/f0d1fb05d70c8a561cd8d0473bcacafa2fc137ff
- web https://nvd.nist.gov/vuln/detail/CVE-2026-74563
- web https://github.com/advisories/GHSA-29x7-mv82-cj8r
- web https://git.kernel.org/stable/c/ba95bce5dfe6e2ef602a87e0557225f2934ccb5c
- web https://git.kernel.org/stable/c/c4933624a6f416ecfcc31ab58d585da1207a0597
- web https://git.kernel.org/stable/c/f8a8977af2134a1d91e5f9773cb7d9d53278c830