Technology · F5
F5 BIG-IP vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 41 vulnerabilities in F5 BIG-IP: 0 in the last 7 days and 3 in the last 90 days, 5 of them critical and 5 exploited in the wild. The most recent, CVE-2026-66842, was published on 2 September 2026.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 5
- Exploited in the wild
- 5
About F5 BIG-IP
A family of application delivery networking products that manage network traffic and security.
Latest F5 BIG-IP vulnerabilities
- CVE-2026-66842: F5 BIG-IP privilege escalation in TMUIhighCVSS 8.8EPSS 0.5%
- CVE-2026-63020: F5 BIG-IP Configuration utility error message spoofinglowCVSS 3.1EPSS 0.2%
- CVE-2026-59762: F5 BIG-IP denial of service in HTTP/2 profile memory managementhighCVSS 7.5
- CVE-2026-42937: F5 BIG-IP and BIG-IQ incorrect permission assignment in tmsh and iControl RESTmediumCVSS 6.5EPSS 0.2%
- CVE-2026-42930: F5 BIG-IP Appliance mode restriction bypass via path traversalhighCVSS 8.7EPSS 0.5%
- CVE-2026-42924: F5 BIG-IP privilege escalation in iControl SOAP via SNMP configurationhighCVSS 8.7EPSS 0.3%
- CVE-2026-42920: F5 BIG-IP DoS in TMM via Client SSL Dynamic Record SizinghighCVSS 7.5EPSS 0.3%
- CVE-2026-42919: F5 BIG-IP privilege escalation in multiple modulesmediumCVSS 6.7EPSS 0.3%
- CVE-2026-42781: F5 BIG-IP resource exhaustion in ePVA accelerationmediumCVSS 6.5EPSS 0.2%
- CVE-2026-42409: F5 BIG-IP DoS via HTTP/2 iRule redirectionhighCVSS 7.5EPSS 0.3%
- CVE-2026-42406: F5 BIG-IP and BIG-IQ privilege escalation in configuration objectshighCVSS 8.7EPSS 0.1%
- CVE-2026-42058: F5 BIG-IP information leak in iControl RESTmediumCVSS 4.3EPSS 0.2%
- CVE-2026-41959: F5 BIG-IP and BIG-IQ incorrect permission assignment in tmsh and iControl RESTmediumCVSS 6.5EPSS 0.2%
- CVE-2026-41957: F5 BIG-IP and BIG-IQ RCE in Configuration utilityhighCVSS 8.8EPSS 0.5%
- CVE-2026-41956: F5 BIG-IP stack overflow in Traffic Management MicrokernelhighCVSS 7.5EPSS 0.3%
- CVE-2026-41954: F5 BIG-IP sensitive information disclosure in iControl REST and tmshmediumCVSS 4.9EPSS 0.3%
- CVE-2026-41953: F5 BIG-IP privilege escalation via configuration object modificationhighCVSS 8.7EPSS 0.3%
- CVE-2026-41227: On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in…highCVSS 7.5EPSS 0.3%
- CVE-2026-41219: F5 BIG-IP improper sanitization in QKView utilitymediumCVSS 6.5EPSS 0.3%
- CVE-2026-40703: F5 BIG-IP CSRF in Configuration utility dashboardmediumCVSS 5.4EPSS 0.1%
- CVE-2026-40699: F5 BIG-IP XPath injection in Configuration utilitymediumCVSS 6.5EPSS 0.3%
- CVE-2026-40698: F5 BIG-IP and BIG-IQ privilege escalation in SNMP configurationhighCVSS 8.7EPSS 0.2%
- CVE-2026-40631: F5 BIG-IP privilege escalation in iControl SOAPhighCVSS 8.7EPSS 0.3%
- CVE-2026-40629: F5 BIG-IP denial of service in SSL-enabled virtual servershighCVSS 7.5EPSS 0.3%
- CVE-2026-40618: F5 BIG-IP TMM denial of service in SSL profile processinghighCVSS 7.5EPSS 0.3%
Most severe F5 BIG-IP vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-53521: F5 BIG-IP stack-based buffer overflow in APMcriticalexploited in the wildCVSS 9.8EPSS 7.4%
- CVE-2022-1388: F5 BIG-IP Missing Authentication Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2021-22986: F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2020-5902: F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2018-14634: Linux Kernel integer overflow in create_elf_tablescriticalexploited in the wildCVSS 7.8EPSS 24.1%
- CVE-2026-41957: F5 BIG-IP and BIG-IQ RCE in Configuration utilityhighCVSS 8.8EPSS 0.5%
- CVE-2026-66842: F5 BIG-IP privilege escalation in TMUIhighCVSS 8.8EPSS 0.5%
- CVE-2026-34176: F5 BIG-IP command injection in iControl REST Appliance modehighCVSS 8.7EPSS 0.7%
- CVE-2026-42930: F5 BIG-IP Appliance mode restriction bypass via path traversalhighCVSS 8.7EPSS 0.5%
- CVE-2026-42924: F5 BIG-IP privilege escalation in iControl SOAP via SNMP configurationhighCVSS 8.7EPSS 0.3%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 1 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 2 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/big-ip.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "F5 BIG-IP vulnerabilities", https://junglewise.ai/threats/technologies/big-ip, 26 September 2026.