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CVE-2025-40343
critical
CVSS 9.8
Vulnerability in CVE-2025-40343 (CVE-2025-40343)
Summary
vulnerability in CVE-2025-40343 (CVE-2025-40343). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-40343** has been found in CVE-2025-40343.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2025-40343 CVE-2025-40343" on the vendor's site.
CVE-2025-40343 (CVE-2025-40343) — CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / 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 CVE-2025-40343.
📍 Affected scope
CVE-2025-40343 — .
🔥 Severity
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover
🔧 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. Audit SBOM/dependencies 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
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
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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/04d17540ef51e2c291eb863ca87fd332259b2d40
- web https://git.kernel.org/stable/c/2f4852db87e25d4e226b25cb6f652fef9504360e
- web https://git.kernel.org/stable/c/601ed47b2363c24d948d7bac0c23abc8bd459570
- web https://git.kernel.org/stable/c/85e2ce1920cb511d57aae59f0df6ff85b28bf04d
- web https://git.kernel.org/stable/c/c09ac9a63fc3aaf4670ad7b5e4f5afd764424154
- web https://git.kernel.org/stable/c/f2537be4f8421f6495edfa0bc284d722f253841d
- web https://nvd.nist.gov/vuln/detail/CVE-2025-40343
- web https://github.com/advisories/GHSA-247j-3qhv-rpc8