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CVE-2025-39848
medium
CVSS 5.5
Vulnerability in linux (CVE-2025-39848)
Summary
vulnerability in linux (CVE-2025-39848). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-39848** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2025-39848" on the vendor's site.
CVE-2025-39848 (linux) — CWE-401 / CVSS v3 5.5
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
**A vulnerability** (CWE-401) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: Medium (CVSS 5.5/10). 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
-
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。
-
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/01a2984cb803f2d487b7074f9718db2bf3531f69
- web https://git.kernel.org/stable/c/2bd0f67212908243ce88e35bf69fa77155b47b14
- web https://git.kernel.org/stable/c/42b46684e2c78ee052d8c2ee8d9c2089233c9094
- web https://git.kernel.org/stable/c/5b079be1b9da49ad88fc304c874d4be7085f7883
- web https://git.kernel.org/stable/c/7d449b7a6c8ee434d10a483feed7c5c50108cf56
- web https://git.kernel.org/stable/c/8156210d36a43e76372312c87eb5ea3dbb405a85
- web https://git.kernel.org/stable/c/89064cf534bea4bb28c83fe6bbb26657b19dd5fe
- web https://git.kernel.org/stable/c/b1c71d674a308d2fbc83efcf88bfc4217a86aa17
- web https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- web https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- web https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-39848
- web https://github.com/advisories/GHSA-c6g6-j52p-pg8h