Strix
26.1K

CVE-2021-22973

HIGHCVSS 7.5/10EPSS 0.99%

Last modified

CVE-2021-22973 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On BIG-IP version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x versions, JSON parser function does not protect against out-of-bounds memory accesses or writes. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

On BIG-IP version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x versions, JSON parser function does not protect against out-of-bounds memory accesses or writes. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
0.99%

58.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Access Policy Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Access Policy Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Access Policy Manager>= 15.1.0, < 15.1.2
F5Big-Ip Access Policy Manager>= 16.0.0, < 16.0.1.1
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Advanced Firewall Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Advanced Firewall Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.2
F5Big-Ip Advanced Firewall Manager>= 16.0.0, < 16.0.1.1
F5Big-Ip Analytics>= 12.1.0, <= 12.1.5
F5Big-Ip Analytics>= 13.1.0, < 13.1.3.5
F5Big-Ip Analytics>= 14.1.0, < 14.1.3.1
F5Big-Ip Analytics>= 15.1.0, < 15.1.2
F5Big-Ip Analytics>= 16.0.0, < 16.0.1.1
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Application Acceleration Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Application Acceleration Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.2
F5Big-Ip Application Acceleration Manager>= 16.0.0, < 16.0.1.1
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Application Security Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Application Security Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.2
F5Big-Ip Application Security Manager>= 16.0.0, < 16.0.1.1
F5Big-Ip Domain Name System>= 12.1.0, <= 12.1.5
F5Big-Ip Domain Name System>= 13.1.0, < 13.1.3.5
F5Big-Ip Domain Name System>= 14.1.0, < 14.1.3.1
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.2
F5Big-Ip Domain Name System>= 16.0.0, < 16.0.1.1
F5Big-Ip Fraud Protection Service>= 12.1.0, <= 12.1.5
F5Big-Ip Fraud Protection Service>= 13.1.0, < 13.1.3.5
F5Big-Ip Fraud Protection Service>= 14.1.0, < 14.1.3.1
F5Big-Ip Fraud Protection Service>= 15.1.0, < 15.1.2
F5Big-Ip Fraud Protection Service>= 16.0.0, < 16.0.1.1
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Global Traffic Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Global Traffic Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Global Traffic Manager>= 15.1.0, < 15.1.2
F5Big-Ip Global Traffic Manager>= 16.0.0, < 16.0.1.1
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.5
F5Big-Ip Link Controller>= 13.1.0, < 13.1.3.5
F5Big-Ip Link Controller>= 14.1.0, < 14.1.3.1
F5Big-Ip Link Controller>= 15.1.0, < 15.1.2
F5Big-Ip Link Controller>= 16.0.0, < 16.0.1.1
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.5
F5Big-Ip Policy Enforcement Manager>= 13.1.0, < 13.1.3.5
F5Big-Ip Policy Enforcement Manager>= 14.1.0, < 14.1.3.1
F5Big-Ip Policy Enforcement Manager>= 15.1.0, < 15.1.2
F5Big-Ip Policy Enforcement Manager>= 16.0.0, < 16.0.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22973?
On BIG-IP version 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.5, and all 12.1.x versions, JSON parser function does not protect against out-of-bounds memory accesses or writes. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
How severe is CVE-2021-22973?
CVE-2021-22973 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22973?
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-2021-22973?

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

Scan your code now

Source: NVD / NIST