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Vulnerability record · CVE-2009-0627 · published 8 September 2009

CVE-2009-0627: Cisco nx-os vulnerability

Cisco · Nx Os

Unspecified vulnerability in Cisco NX-OS before 4.0(1a)N2(1), when running on Nexus 5000 platforms, allows remote attackers to cause a denial of service (crash) via an unspecified "sequence of TCP packets" related to "TCP State manipulation," possibly related to separate attacks against CVE-2008-4609.

7.8 CVSS 2.0 High EPSS 2.1% · top 18.8%
7.8CVSS 2.0 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Unspecified vulnerability in Cisco NX-OS before 4.0(1a)N2(1), when running on Nexus 5000 platforms, allows remote attackers to cause a denial of service (crash) via an unspecified "sequence of TCP packets" related to "TCP State manipulation," possibly related to separate attacks against CVE-2008-4609.

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml PatchVendor Advisory
http://www.securitytracker.com/id?1022847
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml PatchVendor Advisory
http://www.securitytracker.com/id?1022847

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-0627), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.