CVE-2026-40618
Last modified
CVE-2026-40618 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition (VE) without Intel QuickAssist Technology (QAT) or on BIG-IP hardware platforms with the database variable crypto.hwacceleration set to disabled, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition (VE) without Intel QuickAssist Technology (QAT) or on BIG-IP hardware platforms with the database variable crypto.hwacceleration set to disabled, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Access Policy Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Analytics | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Analytics | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Application Security Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Application Security Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Application Visibility And Reporting | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Application Visibility And Reporting | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Automation Toolchain | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Automation Toolchain | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Carrier-Grade Nat | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Carrier-Grade Nat | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Container Ingress Services | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Container Ingress Services | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Domain Name System | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Domain Name System | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Edge Gateway | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Edge Gateway | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Fraud Protection Service | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Fraud Protection Service | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Global Traffic Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Global Traffic Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Link Controller | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Link Controller | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Local Traffic Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Local Traffic Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Policy Enforcement Manager | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Policy Enforcement Manager | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Ssl Orchestrator | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Ssl Orchestrator | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Webaccelerator | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Webaccelerator | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Websafe | >= 17.1.0, <= 17.1.3 |
| F5 | Big-Ip Websafe | >= 17.5.0, <= 17.5.1 |
| F5 | Big-Ip Access Policy Manager | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Advanced Firewall Manager | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Analytics | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Application Acceleration Manager | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Application Security Manager | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Application Visibility And Reporting | >= 16.1.0, <= 16.1.6 |
| F5 | Big-Ip Automation Toolchain | >= 16.1.0, <= 16.1.6 |
Showing 50 of 89 affected configurations. See NVD for the full list.
References
- https://my.f5.com/manage/s/article/K000158082Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-40618?
How severe is CVE-2026-40618?
How do I fix CVE-2026-40618?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-4061The Geo Mashup plugin for WordPress is vulnerable to Time-Ba…7.5
- CVE-2026-40610BentoML is a Python library for building online serving syst…5.5
- CVE-2026-40611Let's Encrypt client and ACME library written in Go (Lego). …8.8
- CVE-2026-40612jq is a command-line JSON processor. In 1.8.1 and earlier, j…5.5
- CVE-2026-40613Coturn is a free open source implementation of TURN and STUN…7.5
- CVE-2026-40614PJSIP is a free and open source multimedia communication lib…8.8
- CVE-2026-40619A high security vulnerability affecting Security Center main…7.8
- CVE-2026-4062The Geo Mashup plugin for WordPress is vulnerable to Time-Ba…7.5
- CVE-2026-40620A vulnerability in SenseLive X3050’s embedded management ser…9.8
- CVE-2026-40621ELECOM wireless LAN access point devices do not require auth…9.8
- CVE-2026-40622NLnet Labs Unbound 1.16.2 up to and including version 1.25.0…7.5
- CVE-2026-40623A vulnerability in SenseLive X3050's web management interfac…8.1
Are you affected by CVE-2026-40618?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST