Description
A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.
Published: 2026-09-23
Score: 7.8 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Workaround

To mitigate this issue, users should avoid opening or editing untrusted text files with Emacs. Exercise caution when handling files from unknown or suspicious sources, as interacting with them can lead to arbitrary code execution.

Tracking

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Advisories

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History

Thu, 24 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Title Emacs: emacs: arbitrary code execution, incomplete fix for cve-2024-53920 Emacs: emacs: arbitrary code execution in flymake mode

Thu, 24 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Gnu
Gnu emacs
Vendors & Products Gnu
Gnu emacs

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 23 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs.
Title Emacs: emacs: arbitrary code execution, incomplete fix for cve-2024-53920
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-94
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

Gnu Emacs
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-24T10:31:35.864Z

Reserved: 2026-09-23T08:58:32.822Z

Link: CVE-2026-96442

cve-icon Vulnrichment

Updated: 2026-09-23T13:55:15.446Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-23T11:17:18.550

Modified: 2026-09-23T19:40:10.000

Link: CVE-2026-96442

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-14T00:00:00Z

Links: CVE-2026-96442 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-24T09:11:23Z

Weaknesses