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CVE Vulnerability Details :
CVE-2026-42937
PUBLISHED
More InfoOfficial Page
Assigner-f5
Assigner Org ID-9dacffd4-cb11-413f-8451-fbbfd4ddc0ab
View Known Exploited Vulnerability (KEV) details
Published At-13 May, 2026 | 14:12
Updated At-13 May, 2026 | 16:09
Rejected At-
▼CVE Numbering Authority (CNA)
iControl REST and tmsh vulnerability

Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell (tmsh) arp and ndp commands, and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view adjacent network information.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected Products
Vendor
F5, Inc.F5
Product
BIG-IP
Modules
  • All Modules
Default Status
unknown
Versions
Affected
  • From 21.0.0 before 21.0.0.2 (custom)
  • From 17.5.0 before 17.5.1.6 (custom)
  • From 17.1.0 before 17.1.3.2 (custom)
  • From 16.1.0 before * (custom)
Unaffected
  • From 21.1.0 before * (custom)
Vendor
F5, Inc.F5
Product
BIG-IQ
Default Status
unknown
Versions
Affected
  • From 8.4.0 before * (custom)
Problem Types
TypeCWE IDDescription
CWECWE-732CWE-732 Incorrect Permission Assignment for Critical Resource
Type: CWE
CWE ID: CWE-732
Description: CWE-732 Incorrect Permission Assignment for Critical Resource
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.07.1HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Version: 4.0
Base score: 7.1
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
F5
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://my.f5.com/manage/s/article/K000161018
vendor-advisory
patch
Hyperlink: https://my.f5.com/manage/s/article/K000161018
Resource:
vendor-advisory
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found