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CVE-2025-22121
high
CVSS 7.1
Out-of-Bounds Read in c (CVE-2025-22121)
Summary
vulnerability in c (CVE-2025-22121). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-22121** has been found in c.
Confidential information can be exposed externally. CVSS score: 7.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2025-22121" on the vendor's site.
CVE-2025-22121 (c) — CWE-125 / CVSS v3 7.1
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
**out-of-bounds read** (CWE-125) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: High (CVSS 7.1/10). Confidential information can be exposed externally
🔧 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
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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。
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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://git.kernel.org/stable/c/098927a13fd918bd7c64c2de905350a1ad7b4a3a
- web https://git.kernel.org/stable/c/0c8fbb6ffb3c8f5164572ca88e4ccb6cd6a41ca8
- web https://git.kernel.org/stable/c/27202452b0bc942fdc3db72a44c4dcdab96d5b56
- web https://git.kernel.org/stable/c/3c591353956ffcace2cc74d09930774afed60619
- web https://git.kernel.org/stable/c/5701875f9609b000d91351eaa6bfd97fe2f157f4
- web https://git.kernel.org/stable/c/b374e9ecc92aaa7fb2ab221ee3ff5451118ab566
- web https://git.kernel.org/stable/c/c000a8a9b5343a5ef867df173c6349672dacbd0f
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://nvd.nist.gov/vuln/detail/CVE-2025-22121
- web https://github.com/advisories/GHSA-xmgf-j324-j5xq