CVE-2021-22985 json
On BIG-IP APM version 16.0.x before 16.0.1.1, under certain conditions, when processing VPN traffic with APM, TMM consumes excessive memory.
published 2021-02-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10103
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
On BIG-IP APM version 16.0.x before 16.0.1.1, under certain conditions, when processing VPN traffic with APM, TMM consumes excessive memory. A malicious, authenticated VPN user may abuse this to perform a DoS attack against the APM. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Patch / fix
- f5 big-ip_application_security_manager 11.6.5.2, 12.1.5.3, 13.1.3.6, 14.1.2.8, 15.1.2, 16.0.1.1
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- n/a BIG-IP APM
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
support.f5.com
/csp/article/K88162221
vendor-advisory
Sources
- CVE List CVE-2021-22985
- NVD CVE-2021-22985
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