No exploitation reported

CVE-2022-26071

No exploitation reported by the sources we read.

Published2022-05-05
WeaknessCWE-330

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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

Timeline

dates in UTC

2022-05-0517:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26071?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26071?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

F5 big-ip access policy manager

Branch	Affected	Fixed in	Source
11.6	= 11.6.1	no fix published	NVD
11.6	= 11.6.2	no fix published	NVD
11.6	= 11.6.3	no fix published	NVD
11.6	= 11.6.4	no fix published	NVD
11.6	= 11.6.5	no fix published	NVD
12.1	= 12.1.0	no fix published	NVD
12.1	= 12.1.1	no fix published	NVD
12.1	= 12.1.2	no fix published	NVD
12.1	= 12.1.3	no fix published	NVD
12.1	= 12.1.4	no fix published	NVD
12.1	= 12.1.5	no fix published	NVD
12.1	= 12.1.6	no fix published	NVD

F5 big-ip advanced firewall manager

Branch	Affected	Fixed in	Source
11.6	= 11.6.1	no fix published	NVD
11.6	= 11.6.2	no fix published	NVD
11.6	= 11.6.3	no fix published	NVD
11.6	= 11.6.4	no fix published	NVD
11.6	= 11.6.5	no fix published	NVD
12.1	= 12.1.0	no fix published	NVD
12.1	= 12.1.1	no fix published	NVD
12.1	= 12.1.2	no fix published	NVD
12.1	= 12.1.3	no fix published	NVD
12.1	= 12.1.4	no fix published	NVD
12.1	= 12.1.5	no fix published	NVD
12.1	= 12.1.6	no fix published	NVD

F5 big-ip analytics

Branch	Affected	Fixed in	Source
12.1	= 12.1.4	no fix published	NVD
11.6	= 11.6.1	no fix published	NVD
11.6	= 11.6.2	no fix published	NVD
11.6	= 11.6.3	no fix published	NVD
11.6	= 11.6.4	no fix published	NVD
11.6	= 11.6.5	no fix published	NVD
12.1	= 12.1.0	no fix published	NVD
12.1	= 12.1.1	no fix published	NVD
12.1	= 12.1.2	no fix published	NVD
12.1	= 12.1.3	no fix published	NVD
12.1	= 12.1.5	no fix published	NVD
12.1	= 12.1.6	no fix published	NVD

8 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

support.f5.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.17.4read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-330read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2022-05-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-26071?

Is CVE-2022-26071 actively exploited?

Active exploitation of CVE-2022-26071 has not been confirmed. Its EPSS score was 1.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26071?

CVE-2022-26071 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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