CVE-2021-23052
mediumpriority · track · 24EPSS 0.006 · 48 %ileEUUSEPSS · scored 2026-10-27
On version 14.1.x before 14.1.4.4 and all versions of 13.1.x, an open redirect vulnerability exists on virtual servers enabled with a BIG-IP APM access policy. This vulnerability allows an unauthenticated malicious user to build an open redirect URI. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
- f5 big-ip access policy manager13.1.0 → 13.1.4nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager14.1.0 → 14.1.4.4nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2021-23052cnnvd
- https://support.f5.com/csp/article/K32734107cnnvd
- https://vigilance.fr/vulnerability/F5-BIG-IP-APM-open-redirect-via-Access-Policy-36199cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2869cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021082708cnnvd
- https://www.f5.com/Patchcnnvd
- https://support.f5.com/csp/article/K32734107enisa_euvd
- https://support.f5.com/csp/article/K32734107Vendor Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan