How severe is CVE-2025-59778?

CVE-2025-59778 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-2025-59778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59778?

CVE-2025-59778 affects F5 F5os-c. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59778?

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-2025-59778 have an EU (EUVD) identifier?

Yes. CVE-2025-59778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34639.

When was CVE-2025-59778 published?

CVE-2025-59778 was published on 2025-10-15 and last updated on 2026-06-17.

CVE-2025-59778

CVE-2025-59778 is a high-severity vulnerability in F5 F5os-c 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.7
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34639
Weakness: CWE-770
Affected product: F5 F5os-c
Published: 2025-10-15
Last modified: 2026-06-17

Description

When the Allowed IP Addresses feature is configured on the F5OS-C partition control plane, undisclosed traffic can cause multiple containers to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Frequently asked questions

What is CVE-2025-59778?: When the Allowed IP Addresses feature is configured on the F5OS-C partition control plane, undisclosed traffic can cause multiple containers to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How severe is CVE-2025-59778?: CVE-2025-59778 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-2025-59778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59778?: CVE-2025-59778 affects F5 F5os-c. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59778?: 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-2025-59778 have an EU (EUVD) identifier?: Yes. CVE-2025-59778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34639.
When was CVE-2025-59778 published?: CVE-2025-59778 was published on 2025-10-15 and last updated on 2026-06-17.

References

https://my.f5.com/manage/s/article/K000151718

Affected products (1)

cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*

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