Is CVE-2026-42930 in the CISA KEV catalog?

No. CVE-2026-42930 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-42930?

CVE-2026-42930 has a CVSS v3 base score of 8.7 (HIGH).

What is the EPSS score for CVE-2026-42930?

CVE-2026-42930 has an EPSS score of 0.48% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-42930?

No published fix for CVE-2026-42930 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-42930

HIGH

8.7

CVSS v3

NVD

Description

When running in Appliance mode, an authenticated attacker assigned the 'Administrator' role may be able to bypass Appliance mode restrictions on a BIG-IP system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CWE-35

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Exploit Intelligence

0.48%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Vendor Advisory1

my.f5.com

Related Vulnerabilities

Other CWE-35 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-8088	High	8.8	81%	KEV	Fix
CVE-2020-27130	Critical	9.1	66%	-	-
CVE-2024-2863	Medium	5.3	64%	-	-
CVE-2023-32714	High	8.1	43%	-	Fix
CVE-2024-36991	High	7.5	13%	-	Fix
CVE-2020-26073	High	7.5	12%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-18.