CVE-2025-36504 - CVE House
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Status published High CVE-2025-36504

BIG-IP HTTP/2 vulnerability

Vulnerability Description

When a BIG-IP HTTP/2 httprouter profile is configured on a virtual server, undisclosed responses can cause an increase in memory resource utilization.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • F5

References

More from F5

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CVE-2025-61990
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High 8.7
CVE-2025-61974
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CVE-2025-61960
BIG-IP APM portal access vulnerability
High 8.7
CVE-2025-61958
BIG-IP TMSH vulnerability
High 8.5
CVE-2025-61955
F5OS vulnerability
High 8.5

Affected Vendor

Affected Software

BIG-IP, BIG-IP Next, BIG-IP Next SPK, BIG-IP Next CNF
Vulnerable Versions:
17.5.0, 17.1.0, 16.1.0, 15.1.0, 20.2.0, 1.8.0, 1.7.0, 1.1.0

Timeline

Official Publish: May 7th, 2025
Last Modified: May 8th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-770

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1498 Network Denial of Service
Impact
T1190 Exploit Public-Facing Application
Initial Access
T1562 Impair Defenses
Defense Evasion
T1046 Network Service Discovery
Discovery