CVE-2026-59762

BIG-IP HTTP/2 vulnerability

HIGH

7.5

CVSS Score

Published: July 15, 2026 at 02:33 PM UTC

Updated: August 6, 2026 at 06:33 PM UTC

4 products affected across 1 vendorBig IP Next Cloud Native Network FunctionsBig IP Next Service Proxy for KubernetesBIG-IP Next for Kubernetes

Using BIG-IP by F5?

Get instant alerts when new vulnerabilities affect BIG-IP - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

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.

Affected

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

Big IP Next Cloud Native Network Functions · F5

95%

1.1.0 ≤ v < 1.4.32.0.0 ≤ v < 2.2.32.3.0 ≤ v < 2.3.21.1.0 2.0.0 2.3.0

Affected range stops below 1.4.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.3.2, so it looks safe — our inference, not a vendor statement

BIG-IP Next for Kubernetes · F5

95%

2.0.0 ≤ v < 2.2.32.3.0 ≤ v < 2.3.22.0.0 2.3.0

Affected range stops below 2.2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.3.2, so it looks safe — our inference, not a vendor statement

Big IP Next Service Proxy for Kubernetes · F5

95%

v ≥ 1.9.01.7.0 ≤ v < 1.7.181.8.0 ≤ v ≤ 1.9.22.0.0 ≤ v ≤ 2.0.31.7.0 1.9.0

Affected range stops below 1.7.18, so it looks safe — our inference, not a vendor statement

BIG-IP · F5

60%

17.1.0 ≤ v < 17.1.3.417.5.0 ≤ v < 17.5.1.821.0.0 ≤ v < 21.0.0.321.1.0 ≤ v < 21.1.0.117.1.0 17.5.0 21.0.0 21.1.0

Affected range stops below 17.1.3.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.5.1.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.0.0.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.1.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

Patch and advisory references

https://my.f5.com/manage/s/article/K000162231

References (1)

Vendor AdvisoryPatch

Source: cverecord

https://my.f5.com/manage/s/article/K000162231

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHf5

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-770

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card