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CVE-2026-45970
high
CVSS 7.8
Use-After-Free in linux (CVE-2026-45970)
Summary
vulnerability in linux (CVE-2026-45970). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-45970** 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-2026-45970" on the vendor's site.
CVE-2026-45970 (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
-
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://nvd.nist.gov/vuln/detail/CVE-2026-45970
- web https://git.kernel.org/stable/c/c65cdf46ce340c9c00fbbaf84599d2daff43626e
- web https://git.kernel.org/stable/c/d31065526f160ee0244a719230aa069daca2bf4d
- web https://git.kernel.org/stable/c/db5435b5342e3aaa4521d0f3ccfe94316b253ca1
- web https://git.kernel.org/stable/c/de7c097800f07f3c108185c7a38b53a530ba30ff
- web https://git.kernel.org/stable/c/e6834a4c474697df23ab9948fd3577b26bf48656
- web https://git.kernel.org/stable/c/f94a0de7b9f32745a14a1621c63087a092823587
- web https://git.kernel.org/stable/c/fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c
- web https://git.kernel.org/stable/c/fef13c403be3fb685cb06419e6b3623106aab5ba
- web https://github.com/advisories/GHSA-mc9g-h8jv-5cp3