CVE-2026-42881

CVE-2026-42881 is a high-severity vulnerability with a CVSS 4.0 base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Description

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.

Frequently asked questions

What is CVE-2026-42881?
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.
How severe is CVE-2026-42881?
CVE-2026-42881 has a CVSS 4.0 base score of 8.4, rated high severity.
Is CVE-2026-42881 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-42881?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-42881 have an EU (EUVD) identifier?
Yes. CVE-2026-42881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30305.
When was CVE-2026-42881 published?
CVE-2026-42881 was published on 2026-05-14 and last updated on 2026-06-17.

References

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