CVE-2021-23015
No exploitation reported by the sources we read.
- Published2021-05-10
- Fixed in16.0.1.1 · 15.1.3 · 14.1.4 · 13.1.4
- WeaknessCWE-863
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
On BIG-IP 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.0.8 through 13.1.3.6, and all versions of 16.0.x, when running in Appliance Mode, an authenticated user assigned the 'Administrator' role may be able to bypass Appliance Mode restrictions utilizing undisclosed iControl REST endpoints. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Timeline
dates in UTC- 2021-05-1015:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-23015?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-23015?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.0 | ≥ 16.0.0, < 16.0.1.1 | 16.0.1.1 | NVD |
| 15.1 | ≥ 15.1.0, < 15.1.3 | 15.1.3 | NVD |
| 14.1 | ≥ 14.1.0, < 14.1.4 | 14.1.4 | NVD |
| 13.1 | ≥ 13.1.0, < 13.1.4 | 13.1.4 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.0 | ≥ 16.0.0, < 16.0.1.1 | 16.0.1.1 | NVD |
| 15.1 | ≥ 15.1.0, < 15.1.3 | 15.1.3 | NVD |
| 14.1 | ≥ 14.1.0, < 14.1.4 | 14.1.4 | NVD |
| 13.1 | ≥ 13.1.0, < 13.1.4 | 13.1.4 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.0 | ≥ 16.0.0, < 16.0.1.1 | 16.0.1.1 | NVD |
| 15.1 | ≥ 15.1.0, < 15.1.3 | 15.1.3 | NVD |
| 13.1 | ≥ 13.1.0, < 13.1.4 | 13.1.4 | NVD |
| 14.1 | ≥ 14.1.0, ≤ 14.1.4 | no fix published | NVD |
11 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update F5 big-ip access policy manager to 16.0.1.1 · 15.1.3 · 14.1.4 · 13.1.4
Advisories and patches
- support.f5.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.2read 2026-10-23
- NVDCVSS 2.06.5read 2026-10-23
- NVDweakness (CWE)CWE-863read 2026-10-23
- FIRST EPSSEPSS score1.3 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Published
- 2021-05-10
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2021-23015?
Is CVE-2021-23015 actively exploited?
What is the CVSS score for CVE-2021-23015?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.