CVE-2025-61958: f5 big-ip Execution with Unnecessary Privileges

CVSS: 8.7v3.1HighAnalyzed

Published 15-10-2025Last modified 26-02-2026

Vulnerability summary

CVE-2025-61958 is a high (CVSS 8.7) Execution with Unnecessary Privileges vulnerability in f5 big-ip. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.9% of scored vulnerabilities.

Overall risk

35/100

0100

Medium · default modelHow is this calculated?

CVSS score

8.7/10

010

High · v3.1 (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

15-10-2025
PublishedVulnerability first disclosed.
26-02-2026
Last modifiedVulnerability information updated.

Description

A vulnerability exists in the iHealth command that may allow an authenticated attacker with at least a resource administrator role to bypass tmsh restrictions and gain access to a bash shell. For BIG-IP systems running in Appliance mode, a successful exploit can allow the attacker to cross a security boundary. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS metrics

4 scores · 2 sources · 2 versions

v4.08.5v3.18.7

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

CWE-250Execution with Unnecessary PrivilegesThe product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

Affected systems

F522 products

big-ip≥ 17.5.0, < 17.5.1.1 | ≥ 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, < 17.5.1.1
big-ip_advanced_firewall_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_advanced_web_application_firewall≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_analytics≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1

big-ip_application_acceleration_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_application_security_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_application_visibility_and_reporting≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_automation_toolchain≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_carrier-grade_nat≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_container_ingress_services≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_ddos_hybrid_defender≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_domain_name_system≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_edge_gateway≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_fraud_protection_service≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_global_traffic_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_link_controller≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_local_traffic_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_policy_enforcement_manager≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
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, < 17.5.1.1
big-ip_webaccelerator≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1
big-ip_websafe≥ 15.1.0, < 15.1.10.8 | ≥ 16.1.0, < 16.1.6.1 | ≥ 17.1.0, < 17.1.3 | ≥ 17.5.0, < 17.5.1.1

Show all 22

1 vendor · 22 products

References

1 links

my.f5.com/manage/s/article/K000154647Vendor Advisory

Vulnerability summary

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

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