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CVE-2026-59762NVD
Vulnerability Summary
When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization.
Impact:
System performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Impact:
System performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS v4.0 Base Metrics — Score 8.7 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)None
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 7.5 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Affected & Patched Versions
- F5 BIG-IP >= 21.1.0 and < 21.1.0.1
- F5 BIG-IP >= 21.0.0 and < 21.0.0.3
- F5 BIG-IP >= 17.5.0 and < 17.5.1.8
- F5 BIG-IP >= 17.1.0 and < 17.1.3.4
- F5 BIG-IP Next for Kubernetes >= 2.3.0 and < 2.3.2
- F5 BIG-IP Next for Kubernetes >= 2.0.0 and < 2.2.3
- F5 BIG-IP Next SPK >= 1.9.0 and < *
- F5 BIG-IP Next SPK >= 1.7.0 and < 1.7.18
- F5 BIG-IP Next CNF >= 2.3.0 and < 2.3.2
- F5 BIG-IP Next CNF >= 2.0.0 and < 2.2.3
- F5 BIG-IP Next CNF >= 1.1.0 and < 1.4.3
- F5 BIG-IP 21.1.0.1
- F5 BIG-IP 21.0.0.3
- F5 BIG-IP 17.5.1.8
- F5 BIG-IP 17.1.3.4
- F5 BIG-IP Next for Kubernetes 2.3.2
- F5 BIG-IP Next for Kubernetes 2.2.3
- F5 BIG-IP Next SPK *
- F5 BIG-IP Next SPK 1.7.18
- F5 BIG-IP Next CNF 2.3.2
- F5 BIG-IP Next CNF 2.2.3
- F5 BIG-IP Next CNF 1.4.3