7.5

CVE-2021-23044: f5 big-ip_access_policy_manager Improper Input Validation

CVSS: 7.5v3.1HighModified
Published 14-09-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-23044 is a high (CVSS 7.5) Improper Input Validation vulnerability in f5 big-ip_access_policy_manager. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.93%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-09-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

On BIG-IP version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x and 11.6.x, when the Intel QuickAssist Technology (QAT) compression driver is used on affected BIG-IP hardware and BIG-IP Virtual Edition (VE) platforms, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.93%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

0.00 pp

From 0.93% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

F511 products
  • big-ip_access_policy_manager≥ 11.6.0, ≤ 11.6.5 | ≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0
  • big-ip_advanced_firewall_manager≥ 11.6.0, ≤ 11.6.5 | ≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, ≤ 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0
  • big-ip_analytics≥ 11.6.0, ≤ 11.6.5 | ≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0
  • big-ip_application_acceleration_manager≥ 11.6.0, ≤ 11.6.5 | ≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0
  • big-ip_application_security_manager≥ 11.6.0, ≤ 11.6.5 | ≥ 12.1.0, ≤ 12.1.6 | ≥ 13.1.0, < 13.1.4.1 | ≥ 14.1.0, < 14.1.4.2 | ≥ 15.1.0, < 15.1.3.1 | ≥ 16.0.0, < 16.1.0

1 vendor · 11 products

References

1 links