CVE-2020-26062 | Cisco Integrated Management Controller Username Enumeration Vulnerability

A vulnerability in Cisco Integrated Management Controller could allow an unauthenticated, remote attacker to enumerate valid usernames within the vulnerable application. The vulnerability is due to differences in authentication responses sent back from the application as part of an authentication attempt. An attacker could exploit this vulnerability by sending authentication requests to the affected application. A successful exploit could allow the attacker to confirm the names of administrative user accounts for use in further attacks.There are no workarounds that address this vulnerability.

Published: 2024-11-18 Last update: 2025-08-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-26062 is rated Low Risk (35.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.19%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-26062

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-09 0.14% 0.19% +0.05%
2 2025-12-27 0.16% 0.14% -0.02%
3 2025-07-24 0.16%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-26062

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 [email protected]

Weakness enumeration for CVE-2020-26062

Affected software / configurations for CVE-2020-26062

Vendor Product Version Raw CPE
cisco unified_computing_system 3.2\(1d\) cpe:2.3:a:cisco:unified_computing_system:3.2\(1d\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(2b\) cpe:2.3:a:cisco:unified_computing_system:3.2\(2b\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(2c\) cpe:2.3:a:cisco:unified_computing_system:3.2\(2c\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(2d\) cpe:2.3:a:cisco:unified_computing_system:3.2\(2d\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(2e\) cpe:2.3:a:cisco:unified_computing_system:3.2\(2e\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(2f\) cpe:2.3:a:cisco:unified_computing_system:3.2\(2f\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3a\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3a\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3b\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3b\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3d\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3d\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3e\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3e\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3g\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3g\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3h\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3h\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3i\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3i\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3j\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3j\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3k\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3k\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3l\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3l\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3n\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3n\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3o\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3o\):*:*:*:*:*:*:*
cisco unified_computing_system 3.2\(3p\) cpe:2.3:a:cisco:unified_computing_system:3.2\(3p\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(1a\) cpe:2.3:a:cisco:unified_computing_system:4.0\(1a\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(1b\) cpe:2.3:a:cisco:unified_computing_system:4.0\(1b\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(1c\) cpe:2.3:a:cisco:unified_computing_system:4.0\(1c\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(1d\) cpe:2.3:a:cisco:unified_computing_system:4.0\(1d\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(2a\) cpe:2.3:a:cisco:unified_computing_system:4.0\(2a\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(2b\) cpe:2.3:a:cisco:unified_computing_system:4.0\(2b\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(2d\) cpe:2.3:a:cisco:unified_computing_system:4.0\(2d\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(2e\) cpe:2.3:a:cisco:unified_computing_system:4.0\(2e\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4a\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4a\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4b\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4b\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4c\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4c\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4d\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4d\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4e\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4e\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4f\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4f\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4g\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4g\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4h\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4h\):*:*:*:*:*:*:*
cisco unified_computing_system 4.0\(4i\) cpe:2.3:a:cisco:unified_computing_system:4.0\(4i\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(1a\) cpe:2.3:a:cisco:unified_computing_system:4.1\(1a\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(1b\) cpe:2.3:a:cisco:unified_computing_system:4.1\(1b\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(1c\) cpe:2.3:a:cisco:unified_computing_system:4.1\(1c\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(1d\) cpe:2.3:a:cisco:unified_computing_system:4.1\(1d\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(1e\) cpe:2.3:a:cisco:unified_computing_system:4.1\(1e\):*:*:*:*:*:*:*
cisco unified_computing_system 4.1\(2a\) cpe:2.3:a:cisco:unified_computing_system:4.1\(2a\):*:*:*:*:*:*:*

References for CVE-2020-26062

cvelogic Threat Intelligence