CVE-2021-23013: f5 big-ip_access_policy_manager
Vulnerability summary
CVE-2021-23013 is a high (CVSS 7.5) vulnerability in f5 big-ip_access_policy_manager. EPSS estimates a 0.86% chance of exploitation in the next 30 days, higher than 57.8% of scored vulnerabilities.
Timeline
- 10-05-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3, the Traffic Management Microkernel (TMM) may stop responding when processing Stream Control Transmission Protocol (SCTP) traffic under certain conditions. This vulnerability affects TMM by way of a virtual server configured with an SCTP profile. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.86%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.86% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
F514 products
- big-ip_access_policy_manager≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.4 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.3 | ≥ 16.0.0, < 16.0.1.1
- big-ip_advanced_firewall_manager≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.4 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.3 | ≥ 16.0.0, < 16.0.1.1
- big-ip_advanced_web_application_firewall≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.4 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.3 | ≥ 16.0.0, < 16.0.1.1
- big-ip_analytics≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.4 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.3 | ≥ 16.0.0, < 16.0.1.1
- big-ip_application_acceleration_manager≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.4 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.3 | ≥ 16.0.0, < 16.0.1.1
1 vendor · 14 products
References
2 links- support.f5.com/csp/article/K05300051Vendor Advisory