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CVE-2025-40043
high
CVSS 8.8
Vulnerability in CVE-2025-40043 (CVE-2025-40043)
Summary
vulnerability in CVE-2025-40043 (CVE-2025-40043). Successful exploitation can lead to full system takeover. Exploitable via ``nci_nft_packet``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-40043** has been found in CVE-2025-40043.
Attackers can target a specific entry point like ``nci_nft_packet`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2025-40043 CVE-2025-40043" on the vendor's site.
CVE-2025-40043 (CVE-2025-40043) — CVSS v3 8.8
Attack vector: adjacent-network / unauthenticated / no user interaction
Attack surface: `nci_nft_packet` / `nci_request` / `nci_request_cancel`
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-2025-40043. Attackers reach the vulnerable code path via ``nci_nft_packet`` without authentication.
📍 Affected scope
CVE-2025-40043 — . Attack surface: `nci_nft_packet` / `nci_request` / `nci_request_cancel`.
🔥 Severity
Severity: High (CVSS 8.8/10). 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
-
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。
-
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/0ba68bea1e356f466ad29449938bea12f5f3711f
- web https://git.kernel.org/stable/c/74837bca0748763a77f77db47a0bdbe63b347628
- web https://git.kernel.org/stable/c/8fcc7315a10a84264e55bb65ede10f0af20a983f
- web https://git.kernel.org/stable/c/9c328f54741bd5465ca1dc717c84c04242fac2e1
- web https://git.kernel.org/stable/c/bfdda0123dde406dbff62e7e9136037e97998a15
- web https://git.kernel.org/stable/c/c395d1e548cc68e84584ffa2e3ca9796a78bf7b9
- web https://nvd.nist.gov/vuln/detail/CVE-2025-40043
- web https://github.com/advisories/GHSA-rwhf-69pj-m4jv