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CVE-2024-53920

Published: Nov 27, 2024Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-94
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.5%
Top 59.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-94

Affected Products

emacsgnuOSS Libraries
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
ROSA VirtualizationАО «НТЦ ИТ РОСА»
On-prem
Operating Systems / linux-distro
EMACSThe GNU Project
Mixed
Operating Systems / linux-distro
ROSA Virtualization 3.0АО «НТЦ ИТ РОСА»
On-prem
Operating Systems / linux-distro
gnuoss-projectUSOSS Librariesaka g. nu
red hat inc.commercialUSOperating Systemsaka red hat
ао «нтц ит роса»commercialRUOperating Systems
the gnu projectoss-projectUSOperating Systemsaka gnu
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html
eshelyaron.com
https://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92
git.savannah.gnu.org
https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4
git.savannah.gnu.org
and 11 more references View all →

Timeline

Published
Nov 27, 2024
Last Updated
Nov 3, 2025

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