No exploitation reportedFix available

CVE-2022-27634

Q: Is CVE-2022-27634 actively exploited?

Active exploitation of CVE-2022-27634 has not been confirmed. Its EPSS score was 1.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-27634?

CVE-2022-27634 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2022-05-05
Fixed in16.1.2.2 · 15.1.5.1
WeaknessCWE-20

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 16.1.x versions prior to 16.1.2.2 and 15.1.x versions prior to 15.1.5.1, BIG-IP APM does not properly validate configurations, allowing an authenticated attacker with high privileges to manipulate the APM policy leading to privilege escalation/remote code execution. 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-2022-27634?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-27634?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
16.1	≥ 16.1.0, < 16.1.2.2	16.1.2.2	NVD
15.1	≥ 15.1.0, < 15.1.5.1	15.1.5.1	NVD

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

Fix

Update F5 big-ip access policy manager to 16.1.2.2 · 15.1.5.1

Advisories and patches

support.f5.comMitigation · Vendor Advisory

Detection

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

Sources

CNACVSS 3.16.5read 2026-10-23
NVDCVSS 3.17.2read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score1.4 %2026-10-23

Technical details

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

Frequently asked questions

What is CVE-2022-27634?

Is CVE-2022-27634 actively exploited?

Active exploitation of CVE-2022-27634 has not been confirmed. Its EPSS score was 1.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-27634?

CVE-2022-27634 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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