MEDIUM CISA KEV

CVE-2026-34926

CVSS v3

6.7

MEDIUM

EPSS Score

0.3%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

Description

A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.

CISA Known Exploited Vulnerability

Date Added
5/21/2026
Patch Due Date
6/4/2026
Ransomware Use
Unknown

Technical details

Published
5/21/2026

Frequently asked questions

What is CVE-2026-34926?

A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.

Is CVE-2026-34926 actively exploited?

Yes. CVE-2026-34926 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 6/4/2026.

What is the CVSS score for CVE-2026-34926?

CVE-2026-34926 has a CVSS v3 base score of 6.7 (MEDIUM severity).

Is CVE-2026-34926 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.