Vulnerability in F5 Big-Ip Access Policy Manager
CVE-2021-23007
On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may start dropping all fragmented IP traffic. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.016 (74.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- F5 Big-Ip Access Policy Manager — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Advanced Firewall Manager — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Advanced Web Application Firewall — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Analytics — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Application Acceleration Manager — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Application Security Manager — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Ddos Hybrid Defender — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Domain Name System — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Edge Gateway — versions 14.1.4, 16.0.1.1
- F5 Big-Ip Fraud Protection Service — versions 14.1.4, 16.0.1.1
Public proof-of-concept exploits
References
- support.f5.com/csp/article/K37451543 (Exploit, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-23007?
- CVE-2021-23007 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager. CVSS score: 5.3/10. Published 2021-03-31.
- How severe is CVE-2021-23007?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-23007 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.