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High severity · published Aug 25, 2026
CVE-2026-79992
Emacs: emacs: command injection via crafted filenames in tramp
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Enterprise Linux 10
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-79992
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-79992
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:80506
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:80507
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:84591
vdb-entry
https://access.redhat.com/security/cve/CVE-2026-79992
issue-tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2523665
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