CVE Catalog

CVE-2026-79992

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

3th percentile - higher than 3% of all known CVEs

Summary

In Emacs TRAMP, a vulnerability exists where login arguments are concatenated without proper sanitization and passed to a local shell. A local attacker can exploit this by processing maliciously crafted filenames, potentially leading to arbitrary code execution.

Risk Assessment

The risk includes local arbitrary code execution, potentially leading to privilege escalation and full system compromise.

Recommendation

Upgrade Emacs TRAMP to a version that fixes login argument sanitization, and avoid processing untrusted filenames.

Related vulnerabilities

Original NVD description (English source)

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 data from NVD (NIST) · CISA KEV · EPSS