CVE-2024-53920

HIGHNVD 7.89.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-11-27. NVD baseline CVSS 7.8; sources differ by 2.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)

CVSS v3
7.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
41.4%
KEV
Not listed

Published

November 27, 2024

Last Modified

November 3, 2025

References (7)

Vendor Advisories for CVE-2024-53920(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuemacs-pgtk (1:29.3+1-1ubuntu2+esm3) @ noble2026-05-23ubuntu
redhatdiscovery/discovery-server-rhel9:sha256:bd9cb502def3153c193713b56372694cb555a71b38d4fc0fd9d021bccc5602de2025-07-21redhat
redhatemacs-1:26.1-15.el8_102025-07-15redhat
redhatemacs-1:27.2-14.el9_6.22025-06-24redhat
redhatemacs-1:27.2-10.el9_4.22025-05-12redhat
redhatemacs-1:27.2-11.el9_5.22025-05-12redhat
redhatemacs-1:27.2-8.el9_2.32025-05-12redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(7)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 02:44 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
  4. 2026-07-20 17:07 UTCEPSS rescore
  5. 2026-07-19 14:30 UTCEPSS rescore
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  14. 2026-07-13 22:29 UTCEPSS rescore
  15. 2026-07-13 18:07 UTCOSV refresh
  16. 2026-07-13 06:12 UTCEPSS rescore
  17. 2026-07-12 05:45 UTCEPSS rescore
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  1. 2026-07-04 06:30 UTCEPSS rescore
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  3. 2026-07-01 15:06 UTCEPSS rescore
  4. 2026-06-30 23:21 UTCEPSS rescore
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  6. 2026-06-29 14:05 UTCEPSS rescore
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:55 UTCEPSS rescore
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  10. 2026-06-27 03:08 UTCEPSS rescore
  11. 2026-06-27 03:07 UTCEPSS rescore
  12. 2026-06-25 15:16 UTCOSV refresh
  13. 2026-06-25 13:49 UTCEPSS rescore
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  15. 2026-06-24 14:04 UTCEPSS rescore
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  20. 2026-06-21 14:56 UTCEPSS rescore
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  22. 2026-06-21 01:59 UTCEPSS rescore
  23. 2026-06-19 19:25 UTCEPSS rescore
  24. 2026-06-19 19:25 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
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  27. 2026-06-17 17:52 UTCEPSS rescore
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  35. 2026-06-11 13:59 UTCEPSS rescore
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  37. 2026-06-10 22:18 UTCEPSS rescore
  38. 2026-06-10 22:18 UTCEPSS rescore
  39. 2026-06-10 13:21 UTCEPSS rescore
  40. 2026-06-08 14:16 UTCEPSS rescore
  41. 2026-06-08 14:16 UTCEPSS rescore
  42. 2026-06-08 05:28 UTCOSV refresh
  43. 2026-06-07 15:24 UTCEPSS rescore
  44. 2026-06-07 15:24 UTCEPSS rescore
  45. 2026-06-06 13:46 UTCEPSS rescore
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  47. 2026-06-05 22:46 UTCEPSS rescore
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  49. 2026-06-05 06:09 UTCEPSS rescore
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  51. 2026-06-04 13:11 UTCEPSS rescore
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  55. 2026-06-01 13:51 UTCEPSS rescore
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  58. 2026-05-31 22:30 UTCEPSS rescore
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  60. 2026-05-31 00:16 UTCEPSS rescore
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  62. 2026-05-29 13:43 UTCEPSS rescore
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  66. 2026-05-27 13:40 UTCEPSS rescore
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  68. 2026-05-26 13:43 UTCEPSS rescore
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  70. 2026-05-26 07:18 UTCEPSS rescore
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  72. 2026-05-26 07:18 UTCEPSS rescore
  73. 2026-05-23 17:15 UTCEG score recompute
  74. 2026-05-23 17:15 UTCVendor advisory
  75. 2026-05-23 17:15 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2024-53920?
CVE-2024-53920 is a high vulnerability published on November 27, 2024. In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses…
When was CVE-2024-53920 disclosed?
CVE-2024-53920 was first published in the National Vulnerability Database on November 27, 2024, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-53920 actively exploited?
CVE-2024-53920 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-53920?
CVE-2024-53920 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2024-53920?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-53920, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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