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F5

Big-IP

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21.1 Current train 21.0 Switch to this train 17.5 Switch to this train 17.1 Switch to this train 17.0 Switch to this train 16.1 Switch to this train 15.1 Switch to this train 14.1 Switch to this train
Current version
Last checked: 2026-10-20

21.1.0.3

Release date
October 13, 2026
Security status
Current version appears affected by 1 high-severity CVE.

Source

Vendor Release Information

Public release notes are linked for the latest stored release.

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Release history

See the latest published releases stored for this product.

Version Published Notes
21.1.0.3 2026-10-13 Release Notes
21.1.0.2 2026-09-01 Release Notes
21.1.0.1 2026-07-15 Release Notes
21.1.0 2026-05-15 Release Notes

Vulnerability tracking

versionPing monitors CVEs for this product. Matching CVEs are listed below. We only display CVEs with a CVSS score of 7.0 or higher that were published within the last 90 days.

Affected status is inferred from published affected version ranges where available. Always verify against the vendor advisory before making production decisions.

CVE Severity Published Status Summary
CVE-2026-94127 CRITICAL (9.3) 2026-09-22 Current versionunclear

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected versions
  • From (including) 21.1.0 - Up to (excluding) Hotfix-BIGIP-21.1.0.2.0.30.22-ENG
  • From (including) 17.5.0 - Up to (excluding) Hotfix-BIGIP-17.5.1.9.0.160.12-ENG
Show 1 more
  • From (including) 17.1.0 - Up to (excluding) Hotfix-BIGIP-17.1.3.5.0.41.14-ENG
CVE-2026-66842 HIGH (8.7) 2026-09-02 Current versionnot affected

BIG-IP has a vulnerability where an authenticated user of any role may be able to create administrative user accounts through an undisclosed request to Traffic Management User Interface (TMUI). Impact: This vulnerability may allow an authenticated attacker with network access to the BIG-IP management interface to escalate privileges by creating administrative accounts on the BIG-IP system. There is no data plane exposure; this is a control plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected versions
  • From (including) 21.1.0 - Up to (excluding) 21.1.0.1
  • From (including) 21.0.0 - Up to (excluding) 21.0.0.3
Show 2 more
  • From (including) 17.5.0 - Up to (excluding) 17.5.1.8
  • From (including) 17.1.0 - Up to (excluding) 17.1.3.4
CVE-2024-25560 HIGH (7.5) 2024-05-08 Current versionaffected

When BIG-IP AFM is licensed and provisioned, undisclosed DNS traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected versions
  • From (including) 17.1.0 - Up to (excluding) 17.1.1
  • From (including) 16.1.0 - Up to (excluding) 16.1.4
Show 1 more
  • From (including) 15.1.0 - Up to (excluding) *