CVE-2026-20099 (GCVE-0-2026-20099)
Vulnerability from cvelistv5 – Published: 2026-02-25 16:25 – Updated: 2026-02-26 14:44
VLAI?
Title
Cisco UCS Manager and FXOS Software Command Injection Vulnerability
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.
Severity ?
6.7 (Medium)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Firepower Extensible Operating System (FXOS) |
Affected:
2.3.1.99
Affected: 2.3.1.56 Affected: 2.3.1.110 Affected: 2.3.1.58 Affected: 2.6.1.174 Affected: 2.6.1.157 Affected: 2.3.1.91 Affected: 2.3.1.73 Affected: 2.3.1.66 Affected: 2.6.1.166 Affected: 2.3.1.111 Affected: 2.3.1.166 Affected: 2.3.1.144 Affected: 2.6.1.131 Affected: 2.3.1.130 Affected: 2.3.1.88 Affected: 2.6.1.169 Affected: 2.3.1.75 Affected: 2.3.1.93 Affected: 2.3.1.145 Affected: 2.3.1.155 Affected: 2.6.1.187 Affected: 2.3.1.173 Affected: 2.3.1.179 Affected: 2.6.1.192 Affected: 2.3.1.180 Affected: 2.6.1.204 Affected: 2.6.1.214 Affected: 2.3.1.190 Affected: 2.6.1.224 Affected: 2.6.1.229 Affected: 2.3.1.215 Affected: 2.10.1.159 Affected: 2.3.1.216 Affected: 2.6.1.230 Affected: 2.10.1.166 Affected: 2.6.1.238 Affected: 2.6.1.239 Affected: 2.11.1.154 Affected: 2.10.1.179 Affected: 2.3.1.219 Affected: 2.6.1.254 Affected: 2.12.0.31 Affected: 2.12.0.432 Affected: 2.10.1.207 Affected: 2.3.1.230 Affected: 2.6.1.259 Affected: 2.11.1.182 Affected: 2.12.0.450 Affected: 2.10.1.234 Affected: 2.13.0.198 Affected: 2.12.0.467 Affected: 2.13.0.212 Affected: 2.6.1.264 Affected: 2.10.1.245 Affected: 2.11.1.200 Affected: 2.12.0.498 Affected: 2.10.1.271 Affected: 2.12.1.29 Affected: 2.13.0.243 Affected: 2.11.1.205 Affected: 2.6.1.265 Affected: 2.12.1.48 Affected: 2.14.1.131 Affected: 2.13.0.276 Affected: 2.11.1.228 Affected: 2.12.1.72 Affected: 2.10.1.312 Affected: 2.6.1.272 Affected: 2.14.1.143 Affected: 2.14.1.163 Affected: 2.14.1.167 Affected: 2.12.1.84 Affected: 2.16.0.128 Affected: 2.10.1.328 Affected: 2.10.1.341 Affected: 2.11.1.236 Affected: 2.12.1.95 Affected: 2.13.0.357 Affected: 2.16.0.136 Affected: 2.14.1.186 Affected: 2.17.0.518 Affected: 2.14.1.187 |
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"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."
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\"affected\", \"version\": \"4.0(4i)\"}, {\"status\": \"affected\", \"version\": \"4.1(1e)\"}, {\"status\": \"affected\", \"version\": \"4.1(2b)\"}, {\"status\": \"affected\", \"version\": \"4.0(4k)\"}, {\"status\": \"affected\", \"version\": \"4.1(3a)\"}, {\"status\": \"affected\", \"version\": \"4.1(3b)\"}, {\"status\": \"affected\", \"version\": \"4.1(2c)\"}, {\"status\": \"affected\", \"version\": \"4.0(4l)\"}, {\"status\": \"affected\", \"version\": \"4.1(4a)\"}, {\"status\": \"affected\", \"version\": \"4.1(3c)\"}, {\"status\": \"affected\", \"version\": \"4.1(3d)\"}, {\"status\": \"affected\", \"version\": \"4.2(1c)\"}, {\"status\": \"affected\", \"version\": \"4.2(1d)\"}, {\"status\": \"affected\", \"version\": \"4.0(4m)\"}, {\"status\": \"affected\", \"version\": \"4.1(3e)\"}, {\"status\": \"affected\", \"version\": \"4.2(1f)\"}, {\"status\": \"affected\", \"version\": \"4.1(3f)\"}, {\"status\": \"affected\", \"version\": \"4.2(1i)\"}, {\"status\": \"affected\", \"version\": \"4.1(3h)\"}, {\"status\": \"affected\", \"version\": \"4.2(1k)\"}, {\"status\": \"affected\", \"version\": \"4.2(1l)\"}, {\"status\": \"affected\", \"version\": \"4.0(4n)\"}, {\"status\": \"affected\", \"version\": \"4.2(1m)\"}, {\"status\": \"affected\", \"version\": \"4.1(3i)\"}, {\"status\": \"affected\", \"version\": \"4.2(2a)\"}, {\"status\": \"affected\", \"version\": \"4.2(1n)\"}, {\"status\": \"affected\", \"version\": \"4.1(3j)\"}, {\"status\": \"affected\", \"version\": \"4.2(2c)\"}, {\"status\": \"affected\", \"version\": \"4.2(2d)\"}, {\"status\": \"affected\", \"version\": \"4.2(3b)\"}, {\"status\": \"affected\", \"version\": \"4.1(3k)\"}, {\"status\": \"affected\", \"version\": \"4.0(4o)\"}, {\"status\": \"affected\", \"version\": \"4.2(2e)\"}, {\"status\": \"affected\", \"version\": \"4.2(3d)\"}, {\"status\": \"affected\", \"version\": \"4.2(3e)\"}, {\"status\": \"affected\", \"version\": \"4.2(3g)\"}, {\"status\": \"affected\", \"version\": \"4.1(3l)\"}, {\"status\": \"affected\", \"version\": \"4.3(2b)\"}, {\"status\": \"affected\", \"version\": \"4.2(3h)\"}, {\"status\": \"affected\", \"version\": \"4.2(3i)\"}, {\"status\": \"affected\", \"version\": \"4.3(2c)\"}, {\"status\": \"affected\", \"version\": \"4.1(3m)\"}, {\"status\": \"affected\", \"version\": \"4.3(2e)\"}, {\"status\": \"affected\", \"version\": \"4.3(3a)\"}, {\"status\": \"affected\", \"version\": \"4.2(3j)\"}, {\"status\": \"affected\", \"version\": \"4.3(3c)\"}, {\"status\": \"affected\", \"version\": \"4.3(4a)\"}, {\"status\": \"affected\", \"version\": \"4.2(3k)\"}, {\"status\": \"affected\", \"version\": \"4.3(4b)\"}, {\"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)\"}], \"defaultStatus\": \"unknown\"}], \"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.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q\", \"name\": \"cisco-sa-ucsciv-wGYtC78q\"}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-78\", \"description\": \"Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-02-25T16:25:38.517Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20099\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-26T14:44:05.716Z\", \"dateReserved\": \"2025-10-08T11:59:15.370Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-02-25T16:25:38.517Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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