BIG-IP iControl REST vulnerability

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Summary

CVECVE-2026-28758
StatePUBLISHED
Assignerf5
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-13 16:16:37 UTC
Updated2026-06-29 17:58:57 UTC
DescriptionWhen BIG-IP DNS is provisioned, a vulnerability exists in the gtm_add and bigip_add iControl REST commands that return the ssh-password parameter in cleartext in the iControl REST response and is also logged in the audit log. This may allow a highly privileged, authenticated attacker with access to the audit log to view sensitive information.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Risk And Classification

Primary CVSS: v4.0 6.7 MEDIUM from [email protected]

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000830000 probability, percentile 0.003250000 (date 2026-06-30)

Problem Types: CWE-312 | CWE-312 CWE-312 Cleartext Storage of Sensitive Information

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary6.7MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS6.7MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
3.1[email protected]Secondary4.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
3.1CNACVSS4.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application F5 Big-ip Domain Name System All All All All
Application F5 Big-ip Domain Name System All All All All
Application F5 Big-ip Domain Name System All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA F5 BIG-IP unaffected 21.0.0 * custom Not specified
CNA F5 BIG-IP affected 17.5.0 17.5.1.4 custom Not specified
CNA F5 BIG-IP affected 17.1.0 17.1.3.1 custom Not specified
CNA F5 BIG-IP affected 16.1.0 * custom Not specified

References

ReferenceSourceLinkTags
my.f5.com/manage/s/article/K000158070 [email protected] my.f5.com Mitigation, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: F5 (en)

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