CVE-2026-42881: SQUINKY86 Stigqter

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

STIGQter is an open-source reimplementation of DISA's STIG Viewer. From 0.1.2 to before 1.2.7, an attacker can achieve local code execution (LCE) with the privileges of the user running STIGQter. This requires user interaction: the victim must open the malicious .stigqter file and explicitly run the "Export HTML" action. This vulnerability is fixed in 1.2.7.

Affected products

• SQUINKY86 Stigqter: from 0.1.2, before 1.2.7 (fixed in 1.2.7)

Published 2026-05-14. Last modified 2026-06-17.