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CVE-2025-21925
medium
CVSS 5.5
Vulnerability in c (CVE-2025-21925)
Summary
vulnerability in c (CVE-2025-21925). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-21925** has been found in c.
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 "c CVE-2025-21925" on the vendor's site.
CVE-2025-21925 (c) — 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** (unclassified) exists in c.
📍 Affected scope
c — .
🔥 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 'c' .` 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 'c' . | 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 `c` 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/056e8a46d79e22983bae4267e0d9c52927076f46
- web https://git.kernel.org/stable/c/0f764208dc24ea043c3e20194d32aebf94f8459c
- web https://git.kernel.org/stable/c/13f3f872627f0f27c31245524fc11367756240ad
- web https://git.kernel.org/stable/c/17f86e25431ebc15aa9245ff156414fdad47822d
- web https://git.kernel.org/stable/c/416e8b4c20c6398044e93008deefd563289f477d
- web https://git.kernel.org/stable/c/64e6a754d33d31aa844b3ee66fb93ac84ca1565e
- web https://git.kernel.org/stable/c/9b6f083db141ece0024be01526aa05aa978811cb
- web https://git.kernel.org/stable/c/cd1c44327bbbd50fc24f2b38892f5f328b784d0f
- web https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- web https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-21925
- web https://github.com/advisories/GHSA-chr3-3876-prr8