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CVE-2025-54500

HTTP/2 Vulnerability

MEDIUM
5.3
CVSS Score
Published: August 13, 2025 at 02:46 PM UTC
Updated: June 17, 2026 at 09:40 AM UTC
28 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An HTTP/2 implementation flaw allows a denial-of-service (DoS) that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit (HTTP/2 MadeYouReset Attack). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big IP Access Policy Manager· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Advanced Firewall Manager· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Advanced Web Application Firewall· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Analytics· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Application Acceleration Manager· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Application Security Manager· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Application Visibility and Reporting· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Automation Toolchain· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
Big IP Carrier Grade Nat· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2
BIG-IP Container Ingress Services· F5
95%
15.1.0 ≤ v < 15.1.10.816.1.0 ≤ v < 16.1.6.117.1.0 ≤ v < 17.1.317.5.0 ≤ v < 17.5.1.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://my.f5.com/manage/s/article/K000152001
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.kb.cert.org/vuls/id/767506

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMf5
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

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