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CVE-2026-45185
critical
CVSS 9.8
Use-After-Free in CVE-2026-45185 (CVE-2026-45185)
Summary
vulnerability in CVE-2026-45185 (CVE-2026-45185). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-45185** has been found in CVE-2026-45185.
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-2026-45185 CVE-2026-45185" on the vendor's site.
CVE-2026-45185 (CVE-2026-45185) — CWE-416 / 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
**use-after-free** (CWE-416) exists in CVE-2026-45185.
📍 Affected scope
CVE-2026-45185 — .
🔥 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://code.exim.org/exim/wiki/wiki/EximSecurity
- web https://exim.org
- web https://exim.org/static/doc/security/CVE-2026-45185.txt
- web [email protected]
- web https://news.ycombinator.com/item?id=48111748
- web https://www.openwall.com/lists/oss-security/2026/05/12/4
- web https://xbow.com/blog/dead-letter-cve-2026-45185-xbow-found-rce-exim
- web https://nvd.nist.gov/vuln/detail/CVE-2026-45185
- web https://exim.org/static/doc/security/EXIM-Security-2026-05-01.1
- web https://github.com/advisories/GHSA-fhg4-whcv-f8v4
- web http://www.openwall.com/lists/oss-security/2026/05/12/25