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CVE-2025-40257
Vulnerability in Kernel (CVE-2025-40257)
Summary
vulnerability in Kernel (CVE-2025-40257). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-40257** has been found in Kernel.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade Kernel to **5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10** or later.
If unsure, ask your IT team or search "Kernel CVE-2025-40257" on the vendor's site.
CVE-2025-40257 (Kernel) —
Patched: `5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10` — apply immediately
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 Kernel.
📍 Affected scope
Kernel — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10**.
🛡️ 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 'Kernel' .` 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 'Kernel' . | 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 `Kernel` 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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6Apply patch patch
Upgrade Kernel to 5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10ステージング環境で 5.10.247, 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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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。
Affected packages
Linux
Kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"5.10.247"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.197"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.159"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.118"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.60"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.17.10"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-40257
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40257.json
- package https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- web https://git.kernel.org/stable/c/385ddc0f008f24d1e7d03be998b3a98a37bd29ff
- web https://git.kernel.org/stable/c/426358d9be7ce3518966422f87b96f1bad27295f
- web https://git.kernel.org/stable/c/6d3275d4ca62e2c02e1b7e8cd32db59df91c14b7
- web https://git.kernel.org/stable/c/9be29f8e7ce4e147e56caac2c3a0ce3573cf9c17
- web https://git.kernel.org/stable/c/bbbd75346c8e6490b19c2ba90f38ea66ccf352b2
- web https://git.kernel.org/stable/c/c602cc344b4b8d41515fec3ffa98457ac963ee12
- web https://git.kernel.org/stable/c/e2d1ad207174a7cd7903dd27a00db4b2dfa6c64b
- web https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- web https://github.com/advisories/GHSA-q4wq-g3wm-gmfc