CVE-2024-53920

HIGH
7.8
CVSS Score
Published: November 27, 2024 at 12:00 AM UTC
Updated: September 21, 2026 at 10:35 PM UTC
1 product affected across 1 vendorEmacs

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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

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.)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 30.130.0.92
Affected range stops below 30.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94

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