CVE-2026-59762

EUVD-2026-44679
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
f5CNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
f5big-ip
21.1.0 ≤
𝑥
< 21.1.0.1
CNA
f5big-ip
21.0.0 ≤
𝑥
< 21.0.0.3
CNA
f5big-ip
17.5.0 ≤
𝑥
< 17.5.1.8
CNA
f5big-ip
17.1.0 ≤
𝑥
< 17.1.3.4
CNA
f5big-ip
2.3.0 ≤
𝑥
< 2.3.2
CNA
f5big-ip
2.0.0 ≤
𝑥
< 2.2.3
CNA
f5big-ip
1.7.0 ≤
𝑥
< 1.7.18
CNA
f5big-ip
1.1.0 ≤
𝑥
< 1.4.3
CNA