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CVE-2026-20200

Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability

High8.8EPSS 0.73%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.  This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. 

Scores

CVSS scores of CVE-2026-20200, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.73% · top 45% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

Affected products

  • Cisco · Cisco Unified Computing System (Standalone)

    • affected 4.3(1.230097)
    • affected 4.3(1.230124)
    • affected 4.3(1.230138)
    • affected 4.3(2.230207)
    • affected 4.3(2.230270)
    • affected 4.3(2.240002)
    • affected 4.3(3.240022)
    • affected 4.3(3.240043)
    • affected 4.3(4.240142)
    • affected 4.3(4.240152)
    • affected 4.3(4.242028)
    • affected 4.3(4.241063)
    • affected 4.3(4.242038)
    • affected 4.3(5.240021)
    • affected 4.3(4.242066)
    • affected 4.3(5.250001)
    • affected 4.3(5.250030)
    • affected 4.3(6.250040)
    • affected 4.3(5.250033)
    • affected 4.3(6.250044)
    • affected 4.3(6.250053)
    • affected 4.3(4.252001)
    • affected 4.3(4.252002)
    • affected 6.0(1.250127)
    • affected 6.0(1.250131)
    • affected 4.3(6.250101)
    • affected 6.0(1.250174)
    • 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 6.0(1.250192)
    • affected 4.3(6.260003)
    • affected 6.0(1.250194)
    • affected 4.3(6.260017)

What to do

Exploitation: The Cisco PSIRT is aware that proof-of-concept exploit code is available for CVE-2026-20200. The Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-20200 badge
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Record last updated .