CVE-2020-27725 json
In version 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2 of BIG-IP DNS, GTM, and Link Controller, z…
published 2020-12-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20229
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
In version 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2 of BIG-IP DNS, GTM, and Link Controller, zxfrd leaks memory when listing DNS zones. Zones can be listed via TMSH, iControl or SNMP; only users with access to those services can trigger this vulnerability.
Patch / fix
- f5 big-ip_domain_name_system 13.1.3.5, 14.1.3.1, 15.1.1
- f5 big-ip_global_traffic_manager 13.1.3.5, 14.1.3.1, 15.1.1
- f5 big-ip_link_controller 13.1.3.5, 14.1.3.1, 15.1.1
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:N/A:P |
Affected products
- n/a BIG-IP DNS, GTM, and Link Controller
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
-
support.f5.com
/csp/article/K25595031
vendor-advisory
Sources
- CVE List CVE-2020-27725
- NVD CVE-2020-27725
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