Vulnerability in F5 Big-Ip Domain Name System
CVE-2020-27725
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (54.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- F5 Big-Ip Domain Name System
- F5 Big-Ip Global Traffic Manager
- F5 Big-Ip Link Controller
- Big-Ip DNS, Gtm, And Link Controller — versions 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, 11.6.1-11.6.5.2
Weakness classification (CWE)
References
- support.f5.com/csp/article/K25595031 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-27725?
- CVE-2020-27725 is a medium-severity vulnerability in F5 Big-Ip Domain Name System, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 4.3/10. Published 2020-12-24.
- How severe is CVE-2020-27725?
- Medium severity. CVSS v3 base score is 4.3 out of 10.