How severe is CVE-2025-22891?

CVE-2025-22891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-22891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-22891?

CVE-2025-22891 affects F5 Big-ip Policy Enforcement Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-22891?

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-2025-22891 have an EU (EUVD) identifier?

Yes. CVE-2025-22891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-3038.

When was CVE-2025-22891 published?

CVE-2025-22891 was published on 2025-02-05 and last updated on 2026-06-17.

CVE-2025-22891

CVE-2025-22891 is a high-severity vulnerability in F5 Big-ip Policy Enforcement Manager with a CVSS 3.x base score of 7.5. 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-772.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-3038
Weakness: CWE-772
Affected product: F5 Big-ip Policy Enforcement Manager
Published: 2025-02-05
Last modified: 2026-06-17

Description

When BIG-IP PEM Control Plane listener Virtual Server is configured with Diameter Endpoint profile, undisclosed traffic can cause the Virtual Server to stop processing new client connections and an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Frequently asked questions

What is CVE-2025-22891?: When BIG-IP PEM Control Plane listener Virtual Server is configured with Diameter Endpoint profile, undisclosed traffic can cause the Virtual Server to stop processing new client connections and an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How severe is CVE-2025-22891?: CVE-2025-22891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-22891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-22891?: CVE-2025-22891 affects F5 Big-ip Policy Enforcement Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-22891?: 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-2025-22891 have an EU (EUVD) identifier?: Yes. CVE-2025-22891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-3038.
When was CVE-2025-22891 published?: CVE-2025-22891 was published on 2025-02-05 and last updated on 2026-06-17.

References

https://my.f5.com/manage/s/article/K000139778

Affected products (1)

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

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