CVE-2026-76471 (GCVE-0-2026-76471)
Vulnerability from cvelistv5
Published
2026-10-07 16:15
Modified
2026-10-08 03:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device.
The vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a reload of the device and a DoS condition.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Version: 9.2(3) Version: 9.2(2v) Version: 9.2(1) Version: 9.2(2t) Version: 9.2(3y) Version: 9.3(2) Version: 9.2(4) Version: 9.3(1) Version: 9.3(1z) Version: 9.2(2) Version: 9.3(3) Version: 9.3(4) Version: 9.3(5) Version: 9.3(6) Version: 9.3(5w) Version: 9.3(7) Version: 9.3(7k) Version: 9.3(7a) Version: 9.3(8) Version: 9.3(9) Version: 9.3(10) Version: 10.3(1) Version: 10.3(2) Version: 9.3(11) Version: 10.3(3) Version: 9.3(12) Version: 10.4(1) Version: 10.3(99w) Version: 10.3(3w) Version: 10.3(99x) Version: 10.3(3o) Version: 10.3(4) Version: 10.3(3p) Version: 10.3(4a) Version: 10.4(2) Version: 10.3(3q) Version: 9.3(13) Version: 10.3(5) Version: 10.4(3) Version: 10.3(3x) Version: 10.3(4g) Version: 10.5(1) Version: 10.3(3r) Version: 10.3(6) Version: 9.3(14) Version: 10.4(4) Version: 10.3(4h) Version: 10.5(2) Version: 10.3(7) Version: 10.4(5) Version: 10.5(3) Version: 9.3(15) Version: 10.4(4g) Version: 10.5(4) Version: 10.6(1) Version: 10.5(3t) Version: 10.3(8) Version: 10.4(6) Version: 10.5(3s) Version: 10.5(3e) Version: 10.5(3o) Version: 9.3(16) Version: 10.6(1s) Version: 10.6(2) Version: 10.5(3p) Version: 10.3(9) Version: 10.6(2s) Version: 10.6(3) Version: 10.4(7) Version: 10.5(5) Version: 9.3(17) Version: 10.6(2n) Version: 10.6(3s) |
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"value": "A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device.\u0026nbsp;\r\n\r\nThe vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a reload of the device and a DoS condition."
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\"10.3(4)\"}, {\"status\": \"affected\", \"version\": \"10.3(3p)\"}, {\"status\": \"affected\", \"version\": \"10.3(4a)\"}, {\"status\": \"affected\", \"version\": \"10.4(2)\"}, {\"status\": \"affected\", \"version\": \"10.3(3q)\"}, {\"status\": \"affected\", \"version\": \"9.3(13)\"}, {\"status\": \"affected\", \"version\": \"10.3(5)\"}, {\"status\": \"affected\", \"version\": \"10.4(3)\"}, {\"status\": \"affected\", \"version\": \"10.3(3x)\"}, {\"status\": \"affected\", \"version\": \"10.3(4g)\"}, {\"status\": \"affected\", \"version\": \"10.5(1)\"}, {\"status\": \"affected\", \"version\": \"10.3(3r)\"}, {\"status\": \"affected\", \"version\": \"10.3(6)\"}, {\"status\": \"affected\", \"version\": \"9.3(14)\"}, {\"status\": \"affected\", \"version\": \"10.4(4)\"}, {\"status\": \"affected\", \"version\": \"10.3(4h)\"}, {\"status\": \"affected\", \"version\": \"10.5(2)\"}, {\"status\": \"affected\", \"version\": \"10.3(7)\"}, {\"status\": \"affected\", \"version\": \"10.4(5)\"}, {\"status\": \"affected\", \"version\": \"10.5(3)\"}, {\"status\": \"affected\", \"version\": \"9.3(15)\"}, {\"status\": \"affected\", \"version\": \"10.4(4g)\"}, {\"status\": \"affected\", \"version\": \"10.5(4)\"}, {\"status\": \"affected\", \"version\": \"10.6(1)\"}, {\"status\": \"affected\", \"version\": \"10.5(3t)\"}, {\"status\": \"affected\", \"version\": \"10.3(8)\"}, {\"status\": \"affected\", \"version\": \"10.4(6)\"}, {\"status\": \"affected\", \"version\": \"10.5(3s)\"}, {\"status\": \"affected\", \"version\": \"10.5(3e)\"}, {\"status\": \"affected\", \"version\": \"10.5(3o)\"}, {\"status\": \"affected\", \"version\": \"9.3(16)\"}, {\"status\": \"affected\", \"version\": \"10.6(1s)\"}, {\"status\": \"affected\", \"version\": \"10.6(2)\"}, {\"status\": \"affected\", \"version\": \"10.5(3p)\"}, {\"status\": \"affected\", \"version\": \"10.3(9)\"}, {\"status\": \"affected\", \"version\": \"10.6(2s)\"}, {\"status\": \"affected\", \"version\": \"10.6(3)\"}, {\"status\": \"affected\", \"version\": \"10.4(7)\"}, {\"status\": \"affected\", \"version\": \"10.5(5)\"}, {\"status\": \"affected\", \"version\": \"9.3(17)\"}, {\"status\": \"affected\", \"version\": \"10.6(2n)\"}, {\"status\": \"affected\", \"version\": \"10.6(3s)\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Cisco\", \"product\": \"Cisco Unified Computing System (Managed)\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0(1a)\"}, {\"status\": \"affected\", \"version\": \"4.1(1d)\"}, {\"status\": \"affected\", \"version\": \"4.0(4f)\"}, {\"status\": \"affected\", \"version\": \"4.0(4a)\"}, {\"status\": \"affected\", \"version\": \"4.0(4e)\"}, {\"status\": \"affected\", \"version\": \"4.0(4c)\"}, {\"status\": \"affected\", \"version\": \"4.0(4h)\"}, {\"status\": \"affected\", \"version\": \"4.1(1c)\"}, {\"status\": \"affected\", \"version\": \"4.0(2a)\"}, {\"status\": \"affected\", \"version\": \"4.1(1e)\"}, {\"status\": \"affected\", \"version\": \"4.1(2a)\"}, {\"status\": \"affected\", \"version\": \"4.0(2b)\"}, {\"status\": \"affected\", \"version\": \"4.0(1b)\"}, {\"status\": \"affected\", \"version\": \"4.0(4d)\"}, {\"status\": \"affected\", \"version\": \"4.0(2e)\"}, {\"status\": \"affected\", \"version\": \"4.1(1a)\"}, {\"status\": \"affected\", \"version\": \"4.0(4g)\"}, {\"status\": \"affected\", \"version\": \"4.0(1c)\"}, {\"status\": \"affected\", \"version\": \"4.0(1d)\"}, {\"status\": \"affected\", \"version\": \"4.0(4b)\"}, {\"status\": \"affected\", \"version\": \"4.0(4i)\"}, {\"status\": \"affected\", \"version\": \"4.0(2d)\"}, {\"status\": \"affected\", \"version\": \"4.1(1b)\"}, {\"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\": \"4.3(6c)\"}, {\"status\": \"affected\", \"version\": \"4.2(3p)\"}, {\"status\": \"affected\", \"version\": \"4.3(6d)\"}, {\"status\": \"affected\", \"version\": \"4.3(6e)\"}, {\"status\": \"affected\", \"version\": \"4.3(6f)\"}, {\"status\": \"affected\", \"version\": \"4.2(3r)\"}, {\"status\": \"affected\", \"version\": \"4.3(6g)\"}, {\"status\": \"affected\", \"version\": \"4.3(6h)\"}, {\"status\": \"affected\", \"version\": \"4.2(3s)\"}, {\"status\": \"affected\", \"version\": \"4.3(6i)\"}], \"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-napi-rce-r2shwu2j\", \"name\": \"cisco-sa-napi-rce-r2shwu2j\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device.\u0026nbsp;\\r\\n\\r\\nThe vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a reload of the device and a DoS condition.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-122\", \"description\": \"Heap-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-10-07T16:15:35.076Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-76471\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-08T03:55:32.792Z\", \"dateReserved\": \"2026-08-19T12:02:03.638Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-10-07T16:15:35.076Z\", \"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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