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CVE-2025-39981
Vulnerability in Kernel (CVE-2025-39981)
Summary
vulnerability in Kernel (CVE-2025-39981). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `6.12.59, 6.16.10` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-39981** has been found in Kernel.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade Kernel to **6.12.59, 6.16.10** or later.
If unsure, ask your IT team or search "Kernel CVE-2025-39981" on the vendor's site.
CVE-2025-39981 (Kernel) —
Patched: `6.12.59, 6.16.10` — 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 **6.12.59, 6.16.10**.
🛡️ 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 6.12.59, 6.16.10ステージング環境で 6.12.59, 6.16.10 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":"5.17.0"},{"fixed":"6.12.59"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.16.10"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-39981
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39981.json
- package https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- web https://git.kernel.org/stable/c/0b60eb04b8524e1b4b3f07fea0d16fda9a677d9a
- web https://git.kernel.org/stable/c/302a1f674c00dd5581ab8e493ef44767c5101aab
- web https://git.kernel.org/stable/c/87a1f16f07c6c43771754075e08f45b41d237421
- web https://git.kernel.org/stable/c/d71b98f253b079cbadc83266383f26fe7e9e103b
- web https://github.com/advisories/GHSA-rvm4-4vv7-vq58