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CVE-2022-27181

On F5 BIG-IP APM 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…

Medium5.3EPSS 0.92%
Published
Updated
Reserved
Assigned by
f5

Description

On F5 BIG-IP APM 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, when APM is configured on a virtual server and the associated access profile is configured with APM AAA NTLM Auth, undisclosed requests can cause an increase in internal resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Timeline

  1. ID reserved

    By f5

  2. · 16 days later

    Published

  3. · 2 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-27181, by who scored it
Scored byCVSSScoreVector
f5CNA (assigner)3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVDNVD · Modified3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS (exploitation in 30 days)
0.92% · top 40% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • F5 · BIG-IP APM

    • affected 12.1.x
    • affected 11.6.x
    • unaffected 17.0.0 – < 17.0.x*
    • affected 16.1.x – < 16.1.2.2
    • affected 15.1.x – < 15.1.5.1
    • affected 14.1.x – < 14.1.4.6
    • affected 13.1.x – < 13.1.5

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .