Vulnerability · Published Dec 24, 2020 · Assigned by f5
CVE-2020-27720
High 7.5
In plain English
A high-severity security flaw in BIG-IP LTM/CGNAT. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.3%top 30.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | BIG-IP LTM/CGNAT | 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5 |
References
- https://support.f5.com/csp/article/K04048104 x_refsource_MISC