CVE-2026-42058
published 2026-05-13CVE-2026-42058: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names. Note: Software…
PriorityP420medium4.3CVSS 3.1
AVNACLPRLUINSUCLINAN
EPSS
0.19%
8.6th percentile
An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected
89 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| f5 | big-ip | >= 16.1.0 < * | * |
| f5 | big-ip | >= 17.1.0 < 17.1.3.2 | 17.1.3.2 |
| f5 | big-ip | >= 17.5.0 < 17.5.1.6 | 17.5.1.6 |
| f5 | big-ip | >= 21.0.0 < 21.0.0.2 | 21.0.0.2 |
| f5 | big-ip_access_policy_manager | — | — |
| f5 | big-ip_access_policy_manager | 16.1.0 – 16.1.6 | — |
| f5 | big-ip_access_policy_manager | 17.1.0 – 17.1.3 | — |
| f5 | big-ip_access_policy_manager | 17.5.0 – 17.5.1 | — |
| f5 | big-ip_advanced_firewall_manager | — | — |
| f5 | big-ip_advanced_firewall_manager | 16.1.0 – 16.1.6 | — |
| f5 | big-ip_advanced_firewall_manager | 17.1.0 – 17.1.3 | — |
| f5 | big-ip_advanced_firewall_manager | 17.5.0 – 17.5.1 | — |
| f5 | big-ip_advanced_web_application_firewall | — | — |
| f5 | big-ip_advanced_web_application_firewall | 16.1.0 – 16.1.6 | — |
| f5 | big-ip_advanced_web_application_firewall | 17.1.0 – 17.1.3 | — |
| f5 | big-ip_advanced_web_application_firewall | 17.5.0 – 17.5.1 | — |
| f5 | big-ip_analytics | — | — |
| f5 | big-ip_analytics | 16.1.0 – 16.1.6 | — |
| f5 | big-ip_analytics | 17.1.0 – 17.1.3 | — |
| f5 | big-ip_analytics | 17.5.0 – 17.5.1 | — |
| f5 | big-ip_application_acceleration_manager | — | — |
| f5 | big-ip_application_acceleration_manager | 16.1.0 – 16.1.6 | — |
| f5 | big-ip_application_acceleration_manager | 17.1.0 – 17.1.3 | — |
| f5 | big-ip_application_acceleration_manager | 17.5.0 – 17.5.1 | — |
| f5 | big-ip_application_security_manager | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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
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GHSA
GHSA-7qp2-pc79-f5gh: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names
ghsa_unreviewed·2026-05-13
CVE-2026-42058 [MEDIUM] CWE-732 GHSA-7qp2-pc79-f5gh: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names
An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
VulDB
F5 BIG-IP prior 17.1.3.2/17.5.1.6/21.0.0.2 iControl REST permission assignment (K000160903)
vuldb·2026-05-13·CVSS 5.3
CVE-2026-42058 [MEDIUM] F5 BIG-IP prior 17.1.3.2/17.5.1.6/21.0.0.2 iControl REST permission assignment (K000160903)
A vulnerability, which was classified as problematic, was found in F5 BIG-IP. This affects an unknown function of the component iControl REST Handler. The manipulation results in incorrect permission assignment.
This vulnerability is cataloged as CVE-2026-42058. The attack must be initiated from a local position. There is no exploit available.
You should upgrade the affected component.
F5
CVE-2026-42058: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP lo...
vendor_f5·2026-05-13·CVSS 5.3
CVE-2026-42058 [MEDIUM] CWE-732 CVE-2026-42058: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP lo...
CVE-2026-42058: An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP lo...
An authenticated attacker's undisclosed requests to BIG-IP iControl REST can lead to an information leak of BIG-IP local user account names. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected Products: iControl REST
F5 Advisory Articles: K000160903
F5 References: https://my.f5.com/manage/s/article/K000160903
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-13
Published