CVE-2026-59762
BIG-IP HTTP/2 vulnerability
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.
INFO
Published Date :
July 15, 2026, 3:16 p.m.
Last Modified :
July 15, 2026, 4:23 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-59762
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 9dacffd4-cb11-413f-8451-fbbfd4ddc0ab | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 9dacffd4-cb11-413f-8451-fbbfd4ddc0ab | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Apply system software updates.
- Install the latest available security patches.
- Restart the TMM process if necessary.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-59762.
| URL | Resource |
|---|---|
| https://my.f5.com/manage/s/article/K000162231 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-59762 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-59762
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-59762 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-59762 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-59762', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-15T15:34:45.499391Z'} -
New CVE Received by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'F5', 'modules': ['All Modules'], 'product': 'BIG-IP', 'versions': [{'status': 'affected', 'version': '21.1.0', 'lessThan': '21.1.0.1', 'versionType': 'custom'}, {'status': 'affected', 'version': '21.0.0', 'lessThan': '21.0.0.3', 'versionType': 'custom'}, {'status': 'affected', 'version': '17.5.0', 'lessThan': '17.5.1.8', 'versionType': 'custom'}, {'status': 'affected', 'version': '17.1.0', 'lessThan': '17.1.3.4', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'F5', 'modules': ['TMM'], 'product': 'BIG-IP Next for Kubernetes', 'versions': [{'status': 'affected', 'version': '2.3.0', 'lessThan': '2.3.2', 'versionType': 'custom'}, {'status': 'affected', 'version': '2.0.0', 'lessThan': '2.2.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'F5', 'modules': ['TMM'], 'product': 'BIG-IP Next SPK', 'versions': [{'status': 'affected', 'version': '1.9.0', 'lessThan': '*', 'versionType': 'custom'}, {'status': 'affected', 'version': '1.7.0', 'lessThan': '1.7.18', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'F5', 'modules': ['TMM'], 'product': 'BIG-IP Next CNF', 'versions': [{'status': 'affected', 'version': '2.3.0', 'lessThan': '2.3.2', 'versionType': 'custom'}, {'status': 'affected', 'version': '2.0.0', 'lessThan': '2.2.3', 'versionType': 'custom'}, {'status': 'affected', 'version': '1.1.0', 'lessThan': '1.4.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added Reference https://my.f5.com/manage/s/article/K000162231