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CVE-2022-26071

HIGHCVSS 7.5/10EPSS 0.98%

Last modified

CVE-2022-26071 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability
0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager11.6.1
F5Big-Ip Access Policy Manager11.6.2
F5Big-Ip Access Policy Manager11.6.3
F5Big-Ip Access Policy Manager11.6.4
F5Big-Ip Access Policy Manager11.6.5
F5Big-Ip Access Policy Manager12.1.0
F5Big-Ip Access Policy Manager12.1.1
F5Big-Ip Access Policy Manager12.1.2
F5Big-Ip Access Policy Manager12.1.3
F5Big-Ip Access Policy Manager12.1.4
F5Big-Ip Access Policy Manager12.1.5
F5Big-Ip Access Policy Manager12.1.6
F5Big-Ip Access Policy Manager13.1.0
F5Big-Ip Access Policy Manager13.1.1
F5Big-Ip Access Policy Manager13.1.3
F5Big-Ip Access Policy Manager13.1.4
F5Big-Ip Access Policy Manager13.1.5
F5Big-Ip Access Policy Manager14.1.0
F5Big-Ip Access Policy Manager14.1.2
F5Big-Ip Access Policy Manager14.1.3
F5Big-Ip Access Policy Manager14.1.4
F5Big-Ip Access Policy Manager15.1.0
F5Big-Ip Access Policy Manager15.1.1
F5Big-Ip Access Policy Manager15.1.2
F5Big-Ip Access Policy Manager15.1.3
F5Big-Ip Access Policy Manager15.1.4
F5Big-Ip Access Policy Manager15.1.5
F5Big-Ip Access Policy Manager16.1.0
F5Big-Ip Access Policy Manager16.1.1
F5Big-Ip Access Policy Manager16.1.2
F5Big-Ip Access Policy Manager17.0.0
F5Big-Ip Advanced Firewall Manager11.6.1
F5Big-Ip Advanced Firewall Manager11.6.2
F5Big-Ip Advanced Firewall Manager11.6.3
F5Big-Ip Advanced Firewall Manager11.6.4
F5Big-Ip Advanced Firewall Manager11.6.5
F5Big-Ip Advanced Firewall Manager12.1.0
F5Big-Ip Advanced Firewall Manager12.1.1
F5Big-Ip Advanced Firewall Manager12.1.2
F5Big-Ip Advanced Firewall Manager12.1.3
F5Big-Ip Advanced Firewall Manager12.1.4
F5Big-Ip Advanced Firewall Manager12.1.5
F5Big-Ip Advanced Firewall Manager12.1.6
F5Big-Ip Advanced Firewall Manager13.1.0
F5Big-Ip Advanced Firewall Manager13.1.1
F5Big-Ip Advanced Firewall Manager13.1.3
F5Big-Ip Advanced Firewall Manager13.1.4
F5Big-Ip Advanced Firewall Manager13.1.5
F5Big-Ip Advanced Firewall Manager14.1.0
F5Big-Ip Advanced Firewall Manager14.1.2

Showing 50 of 341 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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
How severe is CVE-2022-26071?
CVE-2022-26071 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.
How do I fix CVE-2022-26071?
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.

Are you affected by CVE-2022-26071?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST