High severity · published Oct 15, 2025
CVE-2025-53856
When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packet Velocity Acceleration (ePVA) feature,…
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
When a virtual server, network address translation (NAT) object, or secure network address translation (SNAT) object uses the embedded Packet Velocity Acceleration (ePVA) feature, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. To determine which BIG-IP platforms have an ePVA chip refer to K12837: Overview of the ePVA feature https://my.f5.com/manage/s/article/K12837 . Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Advanced Web Application Firewall · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Analytics · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Application Security Manager · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Application Visibility And Reporting · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BA
Big-ip Automation Toolchain · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BC
Big-ip Carrier-grade Nat · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BC
Big-ip Container Ingress Services · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BD
Big-ip Ddos Hybrid Defender · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
BD
Big-ip Domain Name System · F5
15.1.0 before 15.1.10.8; 16.1.0 before 16.1.6.1; 17.1.0 before 17.1.3; 17.5.0 through 17.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53856
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53856
Vendor Advisory
https://my.f5.com/manage/s/article/K000156707
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