Vulnerability in F5 Big-Ip
CVE-2022-26071
On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, a flaw in the way reply ICMP packets are limited in the Traffic Management Microkernel (TMM) allows an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.011 (63.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.000
Affected products
- F5 Big-Ip — versions 12.1.x, 11.6.x, 17.0.0
- F5 Big-Ip Access Policy Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Advanced Firewall Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Analytics — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Application Acceleration Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Application Security Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Domain Name System — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Fraud Protection Service — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Global Traffic Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Link Controller — versions 11.6.1, 11.6.2, 11.6.3
Weakness classification (CWE)
References
- support.f5.com/csp/article/K41440465 (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26071?
- CVE-2022-26071 is a high-severity vulnerability in F5 Big-Ip, classified under Use of Insufficiently Random Values. CVSS score: 7.4/10. Published 2022-05-05.
- How severe is CVE-2022-26071?
- High severity. CVSS v3 base score is 7.4 out of 10.