CVE-2025-54479
CVE-2025-54479 is a high-severity vulnerability in F5 Big-ip Next Cloud-native Network Functions 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 8.7
- EPSS exploit prediction: 0% (24th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-34638
- Weakness: CWE-787
- Affected product: F5 Big-ip Next Cloud-native Network Functions
- Published:
- Last modified:
Description
When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Frequently asked questions
- What is CVE-2025-54479?
- When a classification profile is configured on a virtual server without an HTTP or HTTP/2 profile, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- How severe is CVE-2025-54479?
- CVE-2025-54479 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-2025-54479 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-54479?
- CVE-2025-54479 primarily affects F5 Big-ip Next Cloud-native Network Functions. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-54479?
- 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-2025-54479 have an EU (EUVD) identifier?
- Yes. CVE-2025-54479 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34638.
- When was CVE-2025-54479 published?
- CVE-2025-54479 was published on 2025-10-15 and last updated on 2026-06-17.
References
Affected products (9)
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_cloud-native_network_functions:2.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_for_kubernetes:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_next_for_kubernetes:2.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:17.5.0:*:*:*:*:*:*:*
More vulnerabilities in F5 Big-ip Next Cloud-native Network Functions
- CVE-2026-42409 — High (CVSS 7.5): When an HTTP/2 profile and an iRule containing the HTTP::redirect or HTTP::respond command are configured on a…
- CVE-2026-41956 — High (CVSS 7.5): When a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic…
- CVE-2026-40629 — High (CVSS 7.5): When SSL profiles are configured on a virtual server, undisclosed traffic can cause the virtual server to stop…
- CVE-2026-40618 — High (CVSS 7.5): When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition (VE) without Intel QuickAssist…
- CVE-2025-61990 — High (CVSS 7.5): When using a multi-bladed platform with more than one blade, undisclosed traffic can cause the Traffic Management…
- CVE-2025-58071 — High (CVSS 7.5): When IPsec is configured on the BIG-IP system, undisclosed traffic can cause the Traffic Management Microkernel (TMM)…
All CVEs affecting F5 Big-ip Next Cloud-native Network Functions →
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