CVE-2026-20099 (GCVE-0-2026-20099)
Vulnerability from cvelistv5
Published
2026-02-25 16:25
Modified
2026-02-26 14:44
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to root.  This vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.
Impacted products
Vendor Product Version
Cisco Cisco Firepower Extensible Operating System (FXOS) Version: 2.3.1.99
Version: 2.3.1.56
Version: 2.3.1.110
Version: 2.3.1.58
Version: 2.6.1.174
Version: 2.6.1.157
Version: 2.3.1.91
Version: 2.3.1.73
Version: 2.3.1.66
Version: 2.6.1.166
Version: 2.3.1.111
Version: 2.3.1.166
Version: 2.3.1.144
Version: 2.6.1.131
Version: 2.3.1.130
Version: 2.3.1.88
Version: 2.6.1.169
Version: 2.3.1.75
Version: 2.3.1.93
Version: 2.3.1.145
Version: 2.3.1.155
Version: 2.6.1.187
Version: 2.3.1.173
Version: 2.3.1.179
Version: 2.6.1.192
Version: 2.3.1.180
Version: 2.6.1.204
Version: 2.6.1.214
Version: 2.3.1.190
Version: 2.6.1.224
Version: 2.6.1.229
Version: 2.3.1.215
Version: 2.10.1.159
Version: 2.3.1.216
Version: 2.6.1.230
Version: 2.10.1.166
Version: 2.6.1.238
Version: 2.6.1.239
Version: 2.11.1.154
Version: 2.10.1.179
Version: 2.3.1.219
Version: 2.6.1.254
Version: 2.12.0.31
Version: 2.12.0.432
Version: 2.10.1.207
Version: 2.3.1.230
Version: 2.6.1.259
Version: 2.11.1.182
Version: 2.12.0.450
Version: 2.10.1.234
Version: 2.13.0.198
Version: 2.12.0.467
Version: 2.13.0.212
Version: 2.6.1.264
Version: 2.10.1.245
Version: 2.11.1.200
Version: 2.12.0.498
Version: 2.10.1.271
Version: 2.12.1.29
Version: 2.13.0.243
Version: 2.11.1.205
Version: 2.6.1.265
Version: 2.12.1.48
Version: 2.14.1.131
Version: 2.13.0.276
Version: 2.11.1.228
Version: 2.12.1.72
Version: 2.10.1.312
Version: 2.6.1.272
Version: 2.14.1.143
Version: 2.14.1.163
Version: 2.14.1.167
Version: 2.12.1.84
Version: 2.16.0.128
Version: 2.10.1.328
Version: 2.10.1.341
Version: 2.11.1.236
Version: 2.12.1.95
Version: 2.13.0.357
Version: 2.16.0.136
Version: 2.14.1.186
Version: 2.17.0.518
Version: 2.14.1.187
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   Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software Version: 9.12.2
Version: 9.12.1
Version: 9.12.3
Version: 9.12.4
Version: 9.12.3.2
Version: 9.12.3.12
Version: 9.12.2.5
Version: 9.12.1.2
Version: 9.12.2.1
Version: 9.12.3.7
Version: 9.12.2.9
Version: 9.12.3.9
Version: 9.12.1.3
Version: 9.12.4.2
Version: 9.12.4.4
Version: 9.12.4.7
Version: 9.12.4.8
Version: 9.12.4.10
Version: 9.12.4.13
Version: 9.12.4.18
Version: 9.12.4.24
Version: 9.16.1
Version: 9.12.4.26
Version: 9.16.1.28
Version: 9.12.4.29
Version: 9.16.2
Version: 9.12.4.30
Version: 9.16.2.3
Version: 9.12.4.35
Version: 9.16.2.7
Version: 9.12.4.37
Version: 9.17.1
Version: 9.16.2.11
Version: 9.16.2.13
Version: 9.12.4.39
Version: 9.12.4.38
Version: 9.16.2.14
Version: 9.17.1.7
Version: 9.12.4.40
Version: 9.16.3.3
Version: 9.16.3
Version: 9.17.1.9
Version: 9.16.3.14
Version: 9.12.4.41
Version: 9.17.1.10
Version: 9.18.1
Version: 9.12.4.47
Version: 9.16.3.15
Version: 9.18.1.3
Version: 9.17.1.11
Version: 9.12.4.48
Version: 9.18.2
Version: 9.16.3.19
Version: 9.17.1.13
Version: 9.12.4.50
Version: 9.17.1.15
Version: 9.12.4.52
Version: 9.16.3.23
Version: 9.18.2.5
Version: 9.16.4
Version: 9.12.4.54
Version: 9.17.1.20
Version: 9.18.2.7
Version: 9.19.1
Version: 9.16.4.9
Version: 9.12.4.55
Version: 9.18.2.8
Version: 9.16.4.14
Version: 9.18.3
Version: 9.19.1.5
Version: 9.12.4.56
Version: 9.17.1.30
Version: 9.19.1.9
Version: 9.18.3.39
Version: 9.16.4.19
Version: 9.12.4.58
Version: 9.19.1.12
Version: 9.18.3.46
Version: 9.16.4.27
Version: 9.19.1.18
Version: 9.18.3.53
Version: 9.18.3.55
Version: 9.16.4.38
Version: 9.17.1.33
Version: 9.12.4.62
Version: 9.16.4.39
Version: 9.18.3.56
Version: 9.16.4.42
Version: 9.19.1.22
Version: 9.18.4
Version: 9.18.4.5
Version: 9.19.1.24
Version: 9.16.4.48
Version: 9.18.4.8
Version: 9.20.2
Version: 9.19.1.27
Version: 9.12.4.65
Version: 9.16.4.55
Version: 9.18.4.22
Version: 9.20.2.10
Version: 9.16.4.57
Version: 9.19.1.28
Version: 9.17.1.39
Version: 9.12.4.67
Version: 9.18.4.24
Version: 9.20.2.21
Version: 9.16.4.61
Version: 9.19.1.31
Version: 9.18.4.29
Version: 9.20.2.22
Version: 9.16.4.62
Version: 9.18.4.34
Version: 9.20.3
Version: 9.16.4.67
Version: 9.18.4.40
Version: 9.16.4.71
Version: 9.20.3.4
Version: 9.18.4.47
Version: 9.20.3.7
Version: 9.17.1.45
Version: 9.19.1.37
Version: 9.16.4.76
Version: 9.18.4.50
Version: 9.20.3.10
Version: 9.18.4.52
Version: 9.20.3.13
Version: 9.18.4.53
Version: 9.16.4.82
Version: 9.20.3.16
Version: 9.19.1.42
Version: 9.18.4.57
Version: 9.16.4.84
Version: 9.20.3.20
Version: 9.20.4
Version: 9.20.4.7
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   Cisco Cisco Unified Computing System (Managed) Version: 4.0(4h)
Version: 4.1(1a)
Version: 4.0(1c)
Version: 4.0(4a)
Version: 4.0(1a)
Version: 4.0(1d)
Version: 4.1(1c)
Version: 4.0(2a)
Version: 4.0(4g)
Version: 4.0(2e)
Version: 4.0(4c)
Version: 4.0(4f)
Version: 4.0(1b)
Version: 4.0(2b)
Version: 4.0(2d)
Version: 4.1(1b)
Version: 4.0(4d)
Version: 4.0(4e)
Version: 4.0(4b)
Version: 4.1(2a)
Version: 4.1(1d)
Version: 4.0(4i)
Version: 4.1(1e)
Version: 4.1(2b)
Version: 4.0(4k)
Version: 4.1(3a)
Version: 4.1(3b)
Version: 4.1(2c)
Version: 4.0(4l)
Version: 4.1(4a)
Version: 4.1(3c)
Version: 4.1(3d)
Version: 4.2(1c)
Version: 4.2(1d)
Version: 4.0(4m)
Version: 4.1(3e)
Version: 4.2(1f)
Version: 4.1(3f)
Version: 4.2(1i)
Version: 4.1(3h)
Version: 4.2(1k)
Version: 4.2(1l)
Version: 4.0(4n)
Version: 4.2(1m)
Version: 4.1(3i)
Version: 4.2(2a)
Version: 4.2(1n)
Version: 4.1(3j)
Version: 4.2(2c)
Version: 4.2(2d)
Version: 4.2(3b)
Version: 4.1(3k)
Version: 4.0(4o)
Version: 4.2(2e)
Version: 4.2(3d)
Version: 4.2(3e)
Version: 4.2(3g)
Version: 4.1(3l)
Version: 4.3(2b)
Version: 4.2(3h)
Version: 4.2(3i)
Version: 4.3(2c)
Version: 4.1(3m)
Version: 4.3(2e)
Version: 4.3(3a)
Version: 4.2(3j)
Version: 4.3(3c)
Version: 4.3(4a)
Version: 4.2(3k)
Version: 4.3(4b)
Version: 4.3(4c)
Version: 4.2(3l)
Version: 4.3(4d)
Version: 4.3(2f)
Version: 4.2(3m)
Version: 4.3(5a)
Version: 4.3(4e)
Version: 4.1(3n)
Version: 4.3(4f)
Version: 4.2(3n)
Version: 4.3(5c)
Version: 4.2(3o)
Version: 4.3(5d)
Version: 4.3(6a)
Version: 4.3(6b)
Version: 4.3(5e)
Version: 4.2(3p)
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Show details on NVD website


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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "version": "9.18.4.40"
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            {
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              "version": "9.16.4.71"
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            {
              "status": "affected",
              "version": "9.20.3.4"
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            {
              "status": "affected",
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            {
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            {
              "status": "affected",
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            {
              "status": "affected",
              "version": "9.16.4.76"
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            {
              "status": "affected",
              "version": "9.18.4.50"
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            {
              "status": "affected",
              "version": "9.20.3.10"
            },
            {
              "status": "affected",
              "version": "9.18.4.52"
            },
            {
              "status": "affected",
              "version": "9.20.3.13"
            },
            {
              "status": "affected",
              "version": "9.18.4.53"
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            {
              "status": "affected",
              "version": "9.16.4.82"
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          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unified Computing System (Managed)",
          "vendor": "Cisco",
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            {
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            {
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            {
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              "status": "affected",
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            {
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            {
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            {
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            {
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              "version": "4.2(1c)"
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            {
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            {
              "status": "affected",
              "version": "4.2(1i)"
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
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            {
              "status": "affected",
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            },
            {
              "status": "affected",
              "version": "4.2(3e)"
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            {
              "status": "affected",
              "version": "4.2(3g)"
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            {
              "status": "affected",
              "version": "4.1(3l)"
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              "status": "affected",
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            {
              "status": "affected",
              "version": "4.2(3h)"
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              "status": "affected",
              "version": "4.2(3i)"
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            {
              "status": "affected",
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              "status": "affected",
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            {
              "status": "affected",
              "version": "4.3(2e)"
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            {
              "status": "affected",
              "version": "4.3(3a)"
            },
            {
              "status": "affected",
              "version": "4.2(3j)"
            },
            {
              "status": "affected",
              "version": "4.3(3c)"
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            {
              "status": "affected",
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            {
              "status": "affected",
              "version": "4.2(3k)"
            },
            {
              "status": "affected",
              "version": "4.3(4b)"
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            {
              "status": "affected",
              "version": "4.3(4c)"
            },
            {
              "status": "affected",
              "version": "4.2(3l)"
            },
            {
              "status": "affected",
              "version": "4.3(4d)"
            },
            {
              "status": "affected",
              "version": "4.3(2f)"
            },
            {
              "status": "affected",
              "version": "4.2(3m)"
            },
            {
              "status": "affected",
              "version": "4.3(5a)"
            },
            {
              "status": "affected",
              "version": "4.3(4e)"
            },
            {
              "status": "affected",
              "version": "4.1(3n)"
            },
            {
              "status": "affected",
              "version": "4.3(4f)"
            },
            {
              "status": "affected",
              "version": "4.2(3n)"
            },
            {
              "status": "affected",
              "version": "4.3(5c)"
            },
            {
              "status": "affected",
              "version": "4.2(3o)"
            },
            {
              "status": "affected",
              "version": "4.3(5d)"
            },
            {
              "status": "affected",
              "version": "4.3(6a)"
            },
            {
              "status": "affected",
              "version": "4.3(6b)"
            },
            {
              "status": "affected",
              "version": "4.3(5e)"
            },
            {
              "status": "affected",
              "version": "4.2(3p)"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\r\n\r\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-25T16:25:38.517Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-ucsciv-wGYtC78q",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q"
        }
      ],
      "source": {
        "advisory": "cisco-sa-ucsciv-wGYtC78q",
        "defects": [
          "CSCwn02394"
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco UCS Manager and FXOS Software Command Injection Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20099",
    "datePublished": "2026-02-25T16:25:38.517Z",
    "dateReserved": "2025-10-08T11:59:15.370Z",
    "dateUpdated": "2026-02-26T14:44:05.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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