VULNERABILITY INTELLIGENCE

CVE-2024-53920

CVSS score7.8 HIGH
EPSS probability0.60%
CISA KEVNot currently listed
Published2024-11-27
Last modified2026-09-21
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.)

Weakness classification

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Primary references