What is CVE-2026-79992?

CVE-2026-79992 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-08-25.

How severe is CVE-2026-79992?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Red Hat Enterprise Linux 10

CVE-2026-79992

A flaw was found in Emacs TRAMP. A local attacker could exploit this vulnerability by processing maliciously crafted filenames. This occurs because TRAMP concatenates login arguments without proper sanitization, which are then passed to a local shell. Successful exploitation could lead to arbitrary code execution.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-08-25 · last modified 2026-08-28.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (3.1th percentile), scored 2026-10-10.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

access.redhat.com/security/cve/CVE-2026-79992 (vdb-entry)
RHBZ#2523665 (issue-tracking)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-79992?: CVE-2026-79992 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-08-25.
How severe is CVE-2026-79992?: High severity. CVSS v3 base score is 7.8 out of 10.