5.3

CVE-2021-22998: f5 big-ip_access_policy_manager

CVSS: 5.3v3.1MediumModified
Published 31-03-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-22998 is a medium (CVSS 5.3) vulnerability in f5 big-ip_access_policy_manager. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.95%
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. 31-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, SYN flood protection thresholds are not enforced in secure network address translation (SNAT) listeners. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.95%

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

No weakness data has been published for this record.

Affected systems

F514 products
  • big-ip_access_policy_manager≥ 11.6.1, < 11.6.5.3 | ≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.3.6 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.2.1 | ≥ 16.0.0, < 16.0.1.1
  • big-ip_advanced_firewall_manager≥ 11.6.1, < 11.6.5.3 | ≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.3.6 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.2.1 | ≥ 16.0.0, < 16.0.1.1
  • big-ip_advanced_web_application_firewall≥ 11.6.1, < 11.6.5.3 | ≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.3.6 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.2.1 | ≥ 16.0.0, < 16.0.1.1
  • big-ip_analytics≥ 11.6.1, < 11.6.5.3 | ≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.3.6 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.2.1 | ≥ 16.0.0, < 16.0.1.1
  • big-ip_application_acceleration_manager≥ 11.6.1, < 11.6.5.3 | ≥ 12.1.0, < 12.1.5.3 | ≥ 13.1.0, < 13.1.3.6 | ≥ 14.1.0, < 14.1.4 | ≥ 15.1.0, < 15.1.2.1 | ≥ 16.0.0, < 16.0.1.1

1 vendor · 14 products

References

1 links