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CVE-2026-53268
high
CVSS 8.2
Out-of-Bounds Read in linux (CVE-2026-53268)
Summary
vulnerability in linux (CVE-2026-53268). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-53268** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 8.2/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-53268" on the vendor's site.
CVE-2026-53268 (linux) — CWE-125 / CVSS v3 8.2
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
**out-of-bounds read** (CWE-125) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 8.2/10). Risk of unauthorized operations or information disclosure
🔧 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://nvd.nist.gov/vuln/detail/CVE-2026-53268
- web https://git.kernel.org/stable/c/0afc802160af0df61ed374fdb97fb34cfe5cdf2f
- web https://git.kernel.org/stable/c/4cdda7f868f48e2f81579371584fdbdce37df2c8
- web https://git.kernel.org/stable/c/573810f61bcd6b6815e2ff53bbdd2b9c9d747176
- web https://git.kernel.org/stable/c/66eba0ffce3b7e11449946b4cbbef8ea36112f56
- web https://git.kernel.org/stable/c/7c34f91305292083253df6a9f6c8ede02d4ccaea
- web https://git.kernel.org/stable/c/8a1d6e40dedfe1068aee094d851bd69e289c9fd6
- web https://git.kernel.org/stable/c/9e5da2379f968a3ea5a6e38921ab6201576466dc
- web https://git.kernel.org/stable/c/ddddd8271359961e403d11c90c9ba9fc38914f7e
- web https://github.com/advisories/GHSA-3j2m-3xq8-9948