Is CVE-2026-42919 actively exploited?

No active exploitation of CVE-2026-42919 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42919 be exploited remotely?

Yes. CVE-2026-42919 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42919?

CVE-2026-42919 has a CVSS score of 6.7 (MEDIUM).

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MEDIUM

CVE-2026-42919

CWE-121Published: May 13, 2026· Updated: May 13, 2026

6.7

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:17.7th

Official Description

A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

NVD Source

Technical Analysis

CVE-2026-42919 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.