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CVE-2026-46294
high
CVSS 7.8
Out-of-Bounds Write in linux (CVE-2026-46294)
Summary
out-of-bounds write in linux (CVE-2026-46294). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-46294** 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-2026-46294" on the vendor's site.
CVE-2026-46294 (linux) — CWE-787 / 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
**out-of-bounds write** (CWE-787) 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
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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://git.kernel.org/stable/c/2fa49cc884f6496a915c35621ba4da35649bf159
- web https://git.kernel.org/stable/c/448ee8fb79c26a26599ffa4b2adeb4322d3d3d8c
- web https://git.kernel.org/stable/c/526ff9126a0ae087b65726e1faf31114c718020d
- web https://git.kernel.org/stable/c/5af6a879e915ae7bcd83695c316ebb32e1c61bc2
- web https://git.kernel.org/stable/c/8daa6c708ef524089ae43f2aed9190acb26d7df8
- web https://git.kernel.org/stable/c/c8c5311237448f6ffeecc9aec2362e3692623668
- web https://git.kernel.org/stable/c/d271631023cbe1cbe7c31a0275ab797883be6e0a
- web https://git.kernel.org/stable/c/f0b0b09d9840838ae77ccdd6a62de0daef4e6e0a
- web https://nvd.nist.gov/vuln/detail/CVE-2026-46294
- web https://github.com/advisories/GHSA-c9hh-9962-q529