CVE-2026-20093

Cisco Integrated Management Controller Authentication Bypass Vulnerability

Published Apr 1, 2026 CVSS 3.1 · 9.8 Critical EPSS 1.0% KEV · Not listed

Description

A vulnerability in the change password functionality of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to bypass authentication and gain access to the system as Admin.

This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to bypass authentication, alter the passwords of any user on the system, including an Admin user, and gain access to the system as that user.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Enterprise NFV Infrastructure Software

unknown

Version	Status	Constraints
`4.1.1`	affected	—
`3.9.1`	affected	—
`3.5.2`	affected	—
`3.12.2`	affected	—
`3.6.2`	affected	—
`3.9.2`	affected	—
`3.11.3`	affected	—
`3.11.1`	affected	—
`3.5.1`	affected	—
`3.3.1`	affected	—
`3.10.2`	affected	—
`3.12.1b`	affected	—
`3.4.1`	affected	—
`3.12.1a`	affected	—
`3.6.3`	affected	—
`3.8.1`	affected	—
`3.11.2`	affected	—
`3.12.1`	affected	—
`3.12.3`	affected	—
`3.10.1`	affected	—
`3.6.1`	affected	—
`3.10.3`	affected	—
`3.7.1`	affected	—
`4.1.2`	affected	—
`4.2.1`	affected	—
`4.2.2`	affected	—
`4.4.1`	affected	—
`4.4.2`	affected	—
`4.5.1`	affected	—
`4.4.3`	affected	—
`4.6.1`	affected	—
`4.7.1`	affected	—
`4.6.2-FC2`	affected	—
`4.6.2-FC3`	affected	—
`4.6.2`	affected	—
`4.8.1`	affected	—
`4.8.2`	affected	—
`4.9.1`	affected	—
`4.6.3`	affected	—
`4.9.2-FC5`	affected	—
`4.9.2`	affected	—
`4.10.1`	affected	—
`4.9.3`	affected	—
`4.11.1`	affected	—
`4.9.4`	affected	—
`4.12.1`	affected	—
`4.6.4`	affected	—
`4.12.2`	affected	—
`4.13.1`	affected	—
`4.9.4-ES8`	affected	—
`4.9.5`	affected	—
`4.12.3`	affected	—
`4.6.5-ES1`	affected	—
`4.9.4-ES9`	affected	—
`4.14.1`	affected	—
`4.6.3-FC4`	affected	—
`4.9.4-FC3`	affected	—
`4.12.4`	affected	—
`4.15.1`	affected	—
`4.9.6`	affected	—
`4.16.1`	affected	—
`4.15.2`	affected	—
`4.12.5`	affected	—
`4.15.3`	affected	—
`4.15.4`	affected	—
`4.18.1`	affected	—
`4.12.6`	affected	—
`4.18.2`	affected	—
`4.18.2a`	affected	—

Cisco

Cisco Unified Computing System (Standalone)

unknown

Version	Status	Constraints
`4.0(2g)`	affected	—
`3.1(2i)`	affected	—
`3.1(1d)`	affected	—
`4.0(4i)`	affected	—
`4.1(1c)`	affected	—
`4.0(2c)`	affected	—
`4.0(1e)`	affected	—
`4.0(2h)`	affected	—
`4.0(4h)`	affected	—
`4.0(1h)`	affected	—
`4.0(2l)`	affected	—
`3.1(3g)`	affected	—
`4.0(1.240)`	affected	—
`4.0(2f)`	affected	—
`4.0(1g)`	affected	—
`4.0(2i)`	affected	—
`3.1(3i)`	affected	—
`4.0(4d)`	affected	—
`4.1(1d)`	affected	—
`3.1(3c)`	affected	—
`4.0(4k)`	affected	—
`3.1(2d)`	affected	—
`3.1(3a)`	affected	—
`3.1(3j)`	affected	—
`4.0(2d)`	affected	—
`4.1(1f)`	affected	—
`4.0(1c)`	affected	—
`4.0(4f)`	affected	—
`4.0(4c)`	affected	—
`3.1(3d)`	affected	—
`3.1(2g)`	affected	—
`3.1(2c)`	affected	—
`4.0(1d)`	affected	—
`3.1(2e)`	affected	—
`4.0(1a)`	affected	—
`4.0(1b)`	affected	—
`3.1(3b)`	affected	—
`4.0(4b)`	affected	—
`3.1(2b)`	affected	—
`4.0(4e)`	affected	—
`3.1(3h)`	affected	—
`4.0(4l)`	affected	—
`4.1(1g)`	affected	—
`4.1(2a)`	affected	—
`4.0(2n)`	affected	—
`4.1(1h)`	affected	—
`3.1(3k)`	affected	—
`4.1(2b)`	affected	—
`4.0(2o)`	affected	—
`4.0(4m)`	affected	—
`4.1(2d)`	affected	—
`4.1(3b)`	affected	—
`4.0(2p)`	affected	—
`4.1(2e)`	affected	—
`4.1(2f)`	affected	—
`4.0(4n)`	affected	—
`4.0(2q)`	affected	—
`4.1(3c)`	affected	—
`4.0(2r)`	affected	—
`4.1(3d)`	affected	—
`4.1(2g)`	affected	—
`4.1(2h)`	affected	—
`4.1(3f)`	affected	—
`4.1(2j)`	affected	—
`4.1(2k)`	affected	—
`4.1(3h)`	affected	—
`4.2(2a)`	affected	—
`4.1(3i)`	affected	—
`4.2(2f)`	affected	—
`4.2(2g)`	affected	—
`4.2(3b)`	affected	—
`4.1(3l)`	affected	—
`4.2(3d)`	affected	—
`4.3(1.230097)`	affected	—
`4.2(1e)`	affected	—
`4.2(1b)`	affected	—
`4.2(1j)`	affected	—
`4.2(1i)`	affected	—
`4.2(1f)`	affected	—
`4.2(1a)`	affected	—
`4.2(1c)`	affected	—
`4.2(1g)`	affected	—
`4.3(1.230124)`	affected	—
`4.1(2l)`	affected	—
`4.2(3e)`	affected	—
`4.3(1.230138)`	affected	—
`4.2(3g)`	affected	—
`4.3(2.230207)`	affected	—
`4.2(3h)`	affected	—
`4.2(3i)`	affected	—
`4.3(2.230270)`	affected	—
`4.1(3m)`	affected	—
`4.1(2m)`	affected	—
`4.3(2.240002)`	affected	—
`4.3(3.240022)`	affected	—
`4.2(3j)`	affected	—
`4.1(3n)`	affected	—
`4.3(2.240009)`	affected	—
`4.3(3.240043)`	affected	—
`4.3(4.240142)`	affected	—
`4.3(2.240037)`	affected	—
`4.3(2.240053)`	affected	—
`4.3(4.240152)`	affected	—
`4.2(3l)`	affected	—
`4.3(2.240077)`	affected	—
`4.3(4.242028)`	affected	—
`4.3(4.241063)`	affected	—
`4.3(4.242038)`	affected	—
`4.2(3m)`	affected	—
`4.3(2.240090)`	affected	—
`4.3(5.240021)`	affected	—
`4.3(2.240107)`	affected	—
`4.3(4.242066)`	affected	—
`4.2(3n)`	affected	—
`4.3(5.250001)`	affected	—
`4.2(3o)`	affected	—
`4.3(2.250016)`	affected	—
`4.3(2.250021)`	affected	—
`4.3(5.250030)`	affected	—
`4.3(2.250022)`	affected	—
`4.3(6.250040)`	affected	—
`4.3(5.250033)`	affected	—
`4.3(6.250044)`	affected	—
`4.3(6.250053)`	affected	—
`4.3(2.250037)`	affected	—
`4.3(2.250045)`	affected	—
`4.3(4.252001)`	affected	—
`4.3(4.252002)`	affected	—
`6.0(1.250127)`	affected	—
`4.2(3p)`	affected	—
`6.0(1.250131)`	affected	—
`4.3(6.250101)`	affected	—
`4.3(6.250117)`	affected	—
`4.3(5.250043)`	affected	—
`4.3(6.250039)`	affected	—
`4.3(5.250045)`	affected	—
`4.3(6.250060)`	affected	—
`6.0(1.250130)`	affected	—
`4.3(4.241014)`	affected	—
`4.3(2.250063)`	affected	—
`4.3(6.260003)`	affected	—

Cisco

Cisco Unified Computing System E-Series Software (UCSE)

unknown

Version	Status	Constraints
`3.2.7`	affected	—
`3.2.6`	affected	—
`3.2.4`	affected	—
`3.2.10`	affected	—
`3.2.2`	affected	—
`3.2.3`	affected	—
`2.4.0`	affected	—
`3.2.1`	affected	—
`3.2.11.1`	affected	—
`3.2.8`	affected	—
`3.1.1`	affected	—
`3.0.2`	affected	—
`2.1.0`	affected	—
`2.2.2`	affected	—
`3.1.2`	affected	—
`3.0.1`	affected	—
`2.3.2`	affected	—
`2.3.5`	affected	—
`2.2.1`	affected	—
`3.1.4`	affected	—
`2.4.1`	affected	—
`2.3.1`	affected	—
`3.1.3`	affected	—
`2.3.3`	affected	—
`2.4.2`	affected	—
`3.1.5`	affected	—
`3.1.0`	affected	—
`2.0.0`	affected	—
`3.2.11.3`	affected	—
`3.2.11.5`	affected	—
`3.2.12.2`	affected	—
`3.2.13.6`	affected	—
`3.2.14`	affected	—
`4.11.1`	affected	—
`3.2.15`	affected	—
`4.12.1`	affected	—
`3.2.15.3`	affected	—
`4.12.2`	affected	—
`3.2.16.1`	affected	—
`4.00`	affected	—
`4.15.2`	affected	—
`4.02`	affected	—

No data.

Vendor Product Versions

Cisco

Enterprise Nfv Infrastructure Software

Version	Status	Scheme	Platform
`4.1.1`	affected	semver	—
`3.9.1`	affected	semver	—
`3.5.2`	affected	semver	—
`3.12.2`	affected	semver	—
`3.6.2`	affected	semver	—
`3.9.2`	affected	semver	—
`3.11.3`	affected	semver	—
`3.11.1`	affected	semver	—
`3.5.1`	affected	semver	—
`3.3.1`	affected	semver	—
`3.10.2`	affected	semver	—
`3.12.1b`	affected	generic	—
`3.4.1`	affected	semver	—
`3.12.1a`	affected	generic	—
`3.6.3`	affected	semver	—
`3.8.1`	affected	semver	—
`3.11.2`	affected	semver	—
`3.12.1`	affected	semver	—
`3.12.3`	affected	semver	—
`3.10.1`	affected	semver	—
`3.6.1`	affected	semver	—
`3.10.3`	affected	semver	—
`3.7.1`	affected	semver	—
`4.1.2`	affected	semver	—
`4.2.1`	affected	semver	—
`4.2.2`	affected	semver	—
`4.4.1`	affected	semver	—
`4.4.2`	affected	semver	—
`4.5.1`	affected	semver	—
`4.4.3`	affected	semver	—
`4.6.1`	affected	semver	—
`4.7.1`	affected	semver	—
`4.6.2-FC2`	affected	generic	—
`4.6.2-FC3`	affected	generic	—
`4.6.2`	affected	semver	—
`4.8.1`	affected	semver	—
`4.8.2`	affected	semver	—
`4.9.1`	affected	semver	—
`4.6.3`	affected	semver	—
`4.9.2-FC5`	affected	generic	—
`4.9.2`	affected	semver	—
`4.10.1`	affected	semver	—
`4.9.3`	affected	semver	—
`4.11.1`	affected	semver	—
`4.9.4`	affected	semver	—
`4.12.1`	affected	semver	—
`4.6.4`	affected	semver	—
`4.12.2`	affected	semver	—
`4.13.1`	affected	semver	—
`4.9.4-ES8`	affected	generic	—
`4.9.5`	affected	semver	—
`4.12.3`	affected	semver	—
`4.6.5-ES1`	affected	generic	—
`4.9.4-ES9`	affected	generic	—
`4.14.1`	affected	semver	—
`4.6.3-FC4`	affected	generic	—
`4.9.4-FC3`	affected	generic	—
`4.12.4`	affected	semver	—
`4.15.1`	affected	semver	—
`4.9.6`	affected	semver	—
`4.16.1`	affected	semver	—
`4.15.2`	affected	semver	—
`4.12.5`	affected	semver	—
`4.15.3`	affected	semver	—
`4.15.4`	affected	semver	—
`4.18.1`	affected	semver	—
`4.12.6`	affected	semver	—
`4.18.2`	affected	semver	—
`4.18.2a`	affected	semver	—

Cisco

Unified Computing System

Version	Status	Scheme	Platform
`4.0(2g)`	affected	generic	—
`3.1(2i)`	affected	generic	—
`3.1(1d)`	affected	generic	—
`4.0(4i)`	affected	generic	—
`4.1(1c)`	affected	generic	—
`4.0(2c)`	affected	generic	—
`4.0(1e)`	affected	generic	—
`4.0(2h)`	affected	generic	—
`4.0(4h)`	affected	generic	—
`4.0(1h)`	affected	generic	—
`4.0(2l)`	affected	generic	—
`3.1(3g)`	affected	generic	—
`4.0(1.240)`	affected	generic	—
`4.0(2f)`	affected	generic	—
`4.0(1g)`	affected	generic	—
`4.0(2i)`	affected	generic	—
`3.1(3i)`	affected	generic	—
`4.0(4d)`	affected	generic	—
`4.1(1d)`	affected	generic	—
`3.1(3c)`	affected	generic	—
`4.0(4k)`	affected	generic	—
`3.1(2d)`	affected	generic	—
`3.1(3a)`	affected	generic	—
`3.1(3j)`	affected	generic	—
`4.0(2d)`	affected	generic	—
`4.1(1f)`	affected	generic	—
`4.0(1c)`	affected	generic	—
`4.0(4f)`	affected	generic	—
`4.0(4c)`	affected	generic	—
`3.1(3d)`	affected	generic	—
`3.1(2g)`	affected	generic	—
`3.1(2c)`	affected	generic	—
`4.0(1d)`	affected	generic	—
`3.1(2e)`	affected	generic	—
`4.0(1a)`	affected	generic	—
`4.0(1b)`	affected	generic	—
`3.1(3b)`	affected	generic	—
`4.0(4b)`	affected	generic	—
`3.1(2b)`	affected	generic	—
`4.0(4e)`	affected	generic	—
`3.1(3h)`	affected	generic	—
`4.0(4l)`	affected	generic	—
`4.1(1g)`	affected	generic	—
`4.1(2a)`	affected	generic	—
`4.0(2n)`	affected	generic	—
`4.1(1h)`	affected	generic	—
`3.1(3k)`	affected	generic	—
`4.1(2b)`	affected	generic	—
`4.0(2o)`	affected	generic	—
`4.0(4m)`	affected	generic	—
`4.1(2d)`	affected	generic	—
`4.1(3b)`	affected	generic	—
`4.0(2p)`	affected	generic	—
`4.1(2e)`	affected	generic	—
`4.1(2f)`	affected	generic	—
`4.0(4n)`	affected	generic	—
`4.0(2q)`	affected	generic	—
`4.1(3c)`	affected	generic	—
`4.0(2r)`	affected	generic	—
`4.1(3d)`	affected	generic	—
`4.1(2g)`	affected	generic	—
`4.1(2h)`	affected	generic	—
`4.1(3f)`	affected	generic	—
`4.1(2j)`	affected	generic	—
`4.1(2k)`	affected	generic	—
`4.1(3h)`	affected	generic	—
`4.2(2a)`	affected	generic	—
`4.1(3i)`	affected	generic	—
`4.2(2f)`	affected	generic	—
`4.2(2g)`	affected	generic	—
`4.2(3b)`	affected	generic	—
`4.1(3l)`	affected	generic	—
`4.2(3d)`	affected	generic	—
`4.3(1.230097)`	affected	generic	—
`4.2(1e)`	affected	generic	—
`4.2(1b)`	affected	generic	—
`4.2(1j)`	affected	generic	—
`4.2(1i)`	affected	generic	—
`4.2(1f)`	affected	generic	—
`4.2(1a)`	affected	generic	—
`4.2(1c)`	affected	generic	—
`4.2(1g)`	affected	generic	—
`4.3(1.230124)`	affected	generic	—
`4.1(2l)`	affected	generic	—
`4.2(3e)`	affected	generic	—
`4.3(1.230138)`	affected	generic	—
`4.2(3g)`	affected	generic	—
`4.3(2.230207)`	affected	generic	—
`4.2(3h)`	affected	generic	—
`4.2(3i)`	affected	generic	—
`4.3(2.230270)`	affected	generic	—
`4.1(3m)`	affected	generic	—
`4.1(2m)`	affected	generic	—
`4.3(2.240002)`	affected	generic	—
`4.3(3.240022)`	affected	generic	—
`4.2(3j)`	affected	generic	—
`4.1(3n)`	affected	generic	—
`4.3(2.240009)`	affected	generic	—
`4.3(3.240043)`	affected	generic	—
`4.3(4.240142)`	affected	generic	—
`4.3(2.240037)`	affected	generic	—
`4.3(2.240053)`	affected	generic	—
`4.3(4.240152)`	affected	generic	—
`4.2(3l)`	affected	generic	—
`4.3(2.240077)`	affected	generic	—
`4.3(4.242028)`	affected	generic	—
`4.3(4.241063)`	affected	generic	—
`4.3(4.242038)`	affected	generic	—
`4.2(3m)`	affected	generic	—
`4.3(2.240090)`	affected	generic	—
`4.3(5.240021)`	affected	generic	—
`4.3(2.240107)`	affected	generic	—
`4.3(4.242066)`	affected	generic	—
`4.2(3n)`	affected	generic	—
`4.3(5.250001)`	affected	generic	—
`4.2(3o)`	affected	generic	—
`4.3(2.250016)`	affected	generic	—
`4.3(2.250021)`	affected	generic	—
`4.3(5.250030)`	affected	generic	—
`4.3(2.250022)`	affected	generic	—
`4.3(6.250040)`	affected	generic	—
`4.3(5.250033)`	affected	generic	—
`4.3(6.250044)`	affected	generic	—
`4.3(6.250053)`	affected	generic	—
`4.3(2.250037)`	affected	generic	—
`4.3(2.250045)`	affected	generic	—
`4.3(4.252001)`	affected	generic	—
`4.3(4.252002)`	affected	generic	—
`6.0(1.250127)`	affected	generic	—
`4.2(3p)`	affected	generic	—
`6.0(1.250131)`	affected	generic	—
`4.3(6.250101)`	affected	generic	—
`4.3(6.250117)`	affected	generic	—
`4.3(5.250043)`	affected	generic	—
`4.3(6.250039)`	affected	generic	—
`4.3(5.250045)`	affected	generic	—
`4.3(6.250060)`	affected	generic	—
`4.3(6.260003)`	affected	generic	—

Cisco

Unified Computing System Software

Version	Status	Scheme	Platform
`3.2.7`	affected	semver	—
`3.2.6`	affected	semver	—
`3.2.4`	affected	semver	—
`3.2.10`	affected	semver	—
`3.2.2`	affected	semver	—
`3.2.3`	affected	semver	—
`2.4.0`	affected	semver	—
`3.2.1`	affected	semver	—
`3.2.11.1`	affected	semver	—
`3.2.8`	affected	semver	—
`3.1.1`	affected	semver	—
`3.0.2`	affected	semver	—
`2.1.0`	affected	semver	—
`2.2.2`	affected	semver	—
`3.1.2`	affected	semver	—
`3.0.1`	affected	semver	—
`2.3.2`	affected	semver	—
`2.3.5`	affected	semver	—
`2.2.1`	affected	semver	—
`3.1.4`	affected	semver	—
`2.4.1`	affected	semver	—
`2.3.1`	affected	semver	—
`3.1.3`	affected	semver	—
`2.3.3`	affected	semver	—
`2.4.2`	affected	semver	—
`3.1.5`	affected	semver	—
`3.1.0`	affected	semver	—
`2.0.0`	affected	semver	—
`3.2.11.3`	affected	semver	—
`3.2.11.5`	affected	semver	—
`3.2.12.2`	affected	semver	—
`3.2.13.6`	affected	semver	—
`3.2.14`	affected	semver	—
`4.11.1`	affected	semver	—
`3.2.15`	affected	semver	—
`4.12.1`	affected	semver	—
`3.2.15.3`	affected	semver	—
`4.12.2`	affected	semver	—
`3.2.16.1`	affected	semver	—
`4.00`	affected	generic	—
`4.15.2`	affected	semver	—
`4.02`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.0% (1.008% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-auth-bypass-AgG2BxTn

History

Apr 3, 2026 10:15 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco enterprise Nfv Infrastructure Software Cisco unified Computing System Cisco unified Computing System Software
Vendors & Products		Cisco Cisco enterprise Nfv Infrastructure Software Cisco unified Computing System Cisco unified Computing System Software

Apr 1, 2026 11:45 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability in the change password functionality of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to bypass authentication and gain access to the system as Admin. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to bypass authentication, alter the passwords of any user on the system, including an Admin user, and gain access to the system as that user.
Title		Cisco Integrated Management Controller Authentication Bypass Vulnerability
Weaknesses		CWE-20
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-auth-bypass-AgG2BxTn
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`