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CVE-2024-53920
high
CVSS 7.8
Code Injection in gnu (CVE-2024-53920)
Summary
code injection in gnu (CVE-2024-53920). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2024-53920** has been found in gnu.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "gnu CVE-2024-53920" on the vendor's site.
CVE-2024-53920 (gnu) — CWE-94 / CVSS v3 7.8
Attack vector: local / unauthenticated
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
**arbitrary code execution** (CWE-94) exists in gnu.
📍 Affected scope
gnu — .
🔥 Severity
Severity: High (CVSS 7.8/10). 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. Run `grep -r 'gnu' .` 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 'gnu' . | 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 `gnu` 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
- mailing [email protected]
- web https://nvd.nist.gov/vuln/detail/CVE-2024-53920
- web https://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html
- web https://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92
- web https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4
- web https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg%40mail.gmail.com
- web https://news.ycombinator.com/item?id=42256409
- web https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-30.1
- web https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com
- web https://lists.debian.org/debian-lts-announce/2025/02/msg00033.html
- web http://www.openwall.com/lists/oss-security/2026/08/20/3
- web https://github.com/advisories/GHSA-8737-h7fg-9xgj
- web http://www.openwall.com/lists/oss-security/2026/08/20/7