7.1

CVE-2025-47148: f5 big-ip Improper Resource Shutdown or Release

CVSS: 7.1v4.0HighAnalyzed
Published 15-10-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-47148 is a high (CVSS 7.1) Improper Resource Shutdown or Release vulnerability in f5 big-ip. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.6% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.39%
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. 15-10-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

When the BIG-IP system is configured as both a Security Assertion Markup Language (SAML) service provider (SP) and Identity Provider (IdP), with single logout (SLO) enabled on an access policy, undisclosed requests can cause an increase in memory resource utilization.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

0.00 pp

From 0.39% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.39%

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

F53 products
  • big-ip≥ 17.5.0, < 17.5.1 | ≥ 17.1.0, < 17.1.3 | ≥ 16.1.0, < 16.1.6.1 | ≥ 15.1.0, < 15.1.10.8
  • big-ip_access_policy_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | 17.5.0
  • big-ip_ssl_orchestrator≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | 17.5.0

1 vendor · 3 products

References

1 links