CVE-2026-20099 (GCVE-0-2026-20099)
Vulnerability from cvelistv5
Published
2026-02-25 16:25
Modified
2026-02-26 14:44
Severity ?
VLAI Severity ?
EPSS score ?
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.
References
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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"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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"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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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 seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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