CVE-2024-53920

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-53920
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-11-27 15:15:26 UTC
Updated2026-08-20 06:16:34 UTC
DescriptionIn 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.)

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem Types: CWE-94 | n/a | CWE-94 CWE-94 Improper Control of Generation of Code ('Code Injection')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Emacs All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Gnu Emacs affected 30.0.92 Not specified

References

ReferenceSourceLinkTags
git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS [email protected] git.savannah.gnu.org Product
git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4 [email protected] git.savannah.gnu.org Release Notes
git.savannah.gnu.org/cgit/emacs.git/tag [email protected] git.savannah.gnu.org Product
yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mai... [email protected] yhetil.org Mailing List
news.ycombinator.com/item [email protected] news.ycombinator.com Issue Tracking
www.openwall.com/lists/oss-security/2026/08/20/3 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
lists.debian.org/debian-lts-announce/2025/02/msg00033.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avo... [email protected] eshelyaron.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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