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GLSA-202608-21 : GNU Emacs: Arbitrary code execution

high Nessus Plugin ID 339063

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Description

The remote host is affected by the vulnerability described in GLSA-202608-21 (GNU Emacs: Arbitrary code execution)

 A vulnerability has been discovered in GNU Emacs. Please review the CVE identifier referenced below for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

All GNU Emacs 27 users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-editors/emacs-27.2-r4:27 All GNU Emacs 28 users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-editors/emacs-28.2-r22:28 All GNU Emacs 29 users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-editors/emacs-29.4-r10:29 All GNU Emacs 30 users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-editors/emacs-30.2-r6:30

See Also

https://bugs.gentoo.org/show_bug.cgi?id=981157

https://security.gentoo.org/glsa/202608-21

Plugin Details

Severity: High

ID: 339063

File Name: gentoo_GLSA-202608-21.nasl

Version: 1.2

Type: Local

Published: 8/24/2026

Updated: 8/25/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-79992

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:emacs

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/24/2026

Vulnerability Publication Date: 8/24/2026

Reference Information

CVE: CVE-2026-79992