CVE-2026-76457 (GCVE-0-2026-76457)
Vulnerability from cvelistv5
Published
2026-10-07 16:15
Modified
2026-10-07 17:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-76457 are related to out-of-bounds read issues that are grouped under the Common Weakness Enumeration (CWE) CWE-125.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Version: 8.2(5) Version: 7.3(5)D1(1) Version: 8.4(2) Version: 8.4(3) Version: 9.2(3) Version: 8.2(1) Version: 7.3(1)D1(1) Version: 9.2(2v) Version: 7.3(0)D1(1) Version: 7.3(4)D1(1) Version: 9.2(1) Version: 9.2(2t) Version: 9.2(3y) Version: 9.3(2) Version: 7.3(1)DY(1) Version: 8.1(1) Version: 8.2(2) Version: 8.3(2) Version: 7.3(2)D1(3a) Version: 9.2(4) Version: 8.1(2) Version: 7.3(3)D1(1) Version: 8.2(3) Version: 8.3(1) Version: 8.4(1) Version: 8.1(1b) Version: 7.3(0)DX(1) Version: 7.3(2)D1(1) Version: 9.3(1) Version: 7.3(2)D1(2) Version: 8.2(4) Version: 7.3(0)DY(1) Version: 9.3(1z) Version: 9.2(2) Version: 8.1(2a) Version: 7.3(2)D1(3) Version: 8.1(1a) Version: 8.4(1a) Version: 9.3(3) Version: 7.3(2)D1(1d) Version: 9.3(4) Version: 7.3(6)D1(1) Version: 8.2(6) Version: 9.3(5) Version: 8.4(2a) Version: 8.4(2b) Version: 8.5(1) Version: 9.3(6) Version: 8.4(4) Version: 7.3(7)D1(1) Version: 8.4(2c) Version: 9.3(5w) Version: 8.2(7) Version: 9.3(7) Version: 9.3(7k) Version: 7.3(8)D1(1) Version: 9.3(7a) Version: 8.2(7a) Version: 9.3(8) Version: 8.4(4a) Version: 8.4(2d) Version: 8.4(5) Version: 8.2(8) Version: 9.3(9) Version: 7.3(9)D1(1) Version: 8.4(6) Version: 8.4(2e) Version: 9.3(10) Version: 9.2(1a) Version: 8.2(9) Version: 10.3(1) Version: 8.4(7) Version: 10.3(2) Version: 8.4(6a) Version: 9.3(11) Version: 10.3(3) Version: 9.4(1) Version: 9.3(2a) Version: 8.4(2f) Version: 8.2(10) Version: 9.3(12) Version: 10.4(1) Version: 8.4(8) Version: 10.3(99w) Version: 10.3(3w) Version: 10.3(99x) Version: 10.3(3o) Version: 8.4(9) Version: 10.3(4) Version: 10.3(3p) Version: 10.3(4a) Version: 9.4(1a) Version: 10.4(2) Version: 10.3(3q) Version: 9.3(13) Version: 8.2(11) Version: 9.4(2) Version: 10.3(5) Version: 10.4(3) Version: 10.3(3x) Version: 10.3(4g) Version: 10.5(1) Version: 8.4(10) Version: 9.4(2a) 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: 10.5(1j) Version: 8.4(11) Version: 9.4(3) Version: 10.3(7) Version: 10.4(5) Version: 10.5(3) Version: 9.3(15) Version: 9.4(3a) Version: 10.4(4g) Version: 10.5(4) Version: 9.4(3b) Version: 8.4(12) 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: 9.4(4) Version: 10.5(3o) Version: 9.3(16) Version: 10.6(1s) Version: 10.6(2) Version: 10.5(3p) Version: 9.4(5) Version: 10.3(9) Version: 10.6(2s) Version: 8.4(13) Version: 10.6(3) Version: 10.4(7) Version: 10.5(5) Version: 9.3(17) Version: 10.6(2n) Version: 10.6(3q) Version: 10.6(3o) Version: 10.6(3s) |
||||||||||||
|
||||||||||||||
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\"4.0(1d)\"}, {\"status\": \"affected\", \"version\": \"4.0(1c)\"}, {\"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\": \"6.0(1b)\"}, {\"status\": \"affected\", \"version\": \"6.0(1c)\"}, {\"status\": \"affected\", \"version\": \"4.3(6d)\"}, {\"status\": \"affected\", \"version\": \"6.0(1d)\"}, {\"status\": \"affected\", \"version\": \"6.0(1e)\"}, {\"status\": \"affected\", \"version\": \"4.3(6e)\"}, {\"status\": \"affected\", \"version\": \"6.0(1f)\"}, {\"status\": \"affected\", \"version\": \"4.3(6f)\"}, {\"status\": \"affected\", \"version\": \"6.0(2b)\"}, {\"status\": \"affected\", \"version\": \"6.0(1h)\"}, {\"status\": \"affected\", \"version\": \"4.2(3r)\"}, {\"status\": \"affected\", \"version\": \"6.0(2c)\"}, {\"status\": \"affected\", \"version\": \"4.3(6g)\"}, {\"status\": \"affected\", \"version\": \"6.0(2d)\"}, {\"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 vulnerabilities that are described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR\", \"name\": \"cisco-sa-hardening-nxosw1-cWzSbtR\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\\r\\n\\r\\nThe vulnerabilities tracked by CVE-2026-76457 are related to out-of-bounds read issues that are grouped under the Common Weakness Enumeration (CWE) CWE-125.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-125\", \"description\": \"Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-10-07T16:15:22.604Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-76457\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-07T17:45:39.983Z\", \"dateReserved\": \"2026-08-19T12:02:03.637Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-10-07T16:15:22.604Z\", \"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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