CVE-2021-23014

Name: CVE-2021-23014
Creator: NVD / NIST
Published: 2021-05-10T15:15:07.457+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2021-23014 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, and 14.1.x before 14.1.4, BIG-IP Advanced WAF and ASM are missing authorization checks for file uploads to a specific directory within the REST API which might allow Authenticated users with guest privileges to upload files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, and 14.1.x before 14.1.4, BIG-IP Advanced WAF and ASM are missing authorization checks for file uploads to a specific directory within the REST API which might allow Authenticated users with guest privileges to upload files. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.80%

52.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
F5	Big-Ip Advanced Web Application Firewall	>= 14.1.0, < 14.1.4
F5	Big-Ip Advanced Web Application Firewall	>= 15.1.0, < 15.1.3
F5	Big-Ip Advanced Web Application Firewall	>= 16.0.0, < 16.0.1.1
F5	Big-Ip Application Security Manager	>= 14.1.0, < 14.1.4
F5	Big-Ip Application Security Manager	>= 15.1.0, < 15.1.3
F5	Big-Ip Application Security Manager	>= 16.0.0, < 16.0.1.1

References

https://support.f5.com/csp/article/K23203045Vendor Advisory
https://support.f5.com/csp/article/K23203045Vendor Advisory

Timeline

Published: May 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23014?

How severe is CVE-2021-23014?

CVE-2021-23014 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23014?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23014?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST