CVE-2023-40542
HIGHCVSS 7.5/10EPSS 0.54%
Last modified
CVE-2023-40542 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. EPSS estimates a 0.54% chance of exploitation in the next 30 days.
Description
When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. 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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Access Policy Manager | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Access Policy Manager | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Access Policy Manager | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Advanced Firewall Manager | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Analytics | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Analytics | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Analytics | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Analytics | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Application Acceleration Manager | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Application Security Manager | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Application Security Manager | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Application Visibility And Reporting | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Application Visibility And Reporting | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Application Visibility And Reporting | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Application Visibility And Reporting | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Carrier-Grade Nat | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Carrier-Grade Nat | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Carrier-Grade Nat | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Carrier-Grade Nat | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Ddos Hybrid Defender | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Domain Name System | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Domain Name System | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Domain Name System | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Domain Name System | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Edge Gateway | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Edge Gateway | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Edge Gateway | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Edge Gateway | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Fraud Protection Service | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Fraud Protection Service | >= 14.1.0, <= 14.1.5 |
| F5 | Big-Ip Fraud Protection Service | >= 15.1.0, < 15.1.9 |
| F5 | Big-Ip Fraud Protection Service | >= 16.1.0, < 16.1.4 |
| F5 | Big-Ip Global Traffic Manager | >= 13.1.0, <= 13.1.5 |
| F5 | Big-Ip Global Traffic Manager | >= 14.1.0, <= 14.1.5 |
Showing 50 of 76 affected configurations. See NVD for the full list.
References
- https://my.f5.com/manage/s/article/K000134652Vendor Advisory
- https://my.f5.com/manage/s/article/K000134652Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2023-40542?
When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
How severe is CVE-2023-40542?
CVE-2023-40542 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.
How do I fix CVE-2023-40542?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
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Are you affected by CVE-2023-40542?
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