CVE-2026-5789

Publication date 21 April 2026

Last updated 10 July 2026

Ubuntu priority

Cvss 3 Severity Score

Description

Vulnerability related to an unquoted search path in CivetWeb v1.16. This vulnerability allows a local attacker to execute arbitrary code with elevated privileges by placing a malicious executable in a directory that is scanned before the intended application path (C:\Program Files\CivetWeb\CivetWeb.exe --), due to the absence of quotes in the service configuration.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
civetweb	26.04 LTS resolute	Ignored only affects Windows
	25.10 questing	Ignored end of life, was needs-triage
	24.04 LTS noble	Ignored only affects Windows
	22.04 LTS jammy	Ignored only affects Windows

Severity score breakdown

CVSS version:

Base score 8.5 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Attack requirements	None
Privileges required	Low
User interaction	None
Vulnerable system - Confidentiality impact	High
Vulnerable system - Integrity impact	High
Vulnerable system - Availability impact	High
Subsequent system - Confidentiality impact	None
Subsequent system - Integrity impact	None
Subsequent system - Availability impact	None

Scores

Parameter	Value
Base score	8.5 · High
Base + Threat score	-
Base + Environmental score	-
Base + Threat + Environmental score	-

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Base score 7.8 · High