CVE-2009-0627 — 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

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HIGH

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

Published Sep 8, 2009

7.8

HIGH

CVSS 2.0

EPSS 2.12%

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.12% 0.02123

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.02123

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	2.12% (0.02123)	81.22th	v5 (v2026.06.15)
Jun 15, 2026	2.10% (0.02097)	79.18th	v5 (v2026.06.15)
Mar 17, 2025	0.43% (0.00427)	60.26th	v4 (v2025.03.14)
Dec 12, 2024	0.18% (0.00181)	56.68th	v3 (v2023.03.01)
Apr 25, 2024	0.15% (0.00155)	51.19th	v3 (v2023.03.01)
Mar 15, 2024	0.14% (0.00143)	49.02th	v3 (v2023.03.01)
Feb 8, 2024	0.13% (0.00129)	46.50th	v3 (v2023.03.01)
Mar 7, 2023	0.18% (0.00181)	53.55th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Sep 17, 2022	1.05% (0.01055)	50.47th	v2 (v2022.01.01)
Apr 1, 2022	1.05% (0.01055)	48.43th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (2)

http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml
vendor-advisoryx_refsource_CISCOPatchVendor Advisory
http://www.securitytracker.com/id?1022847
vdb-entryx_refsource_SECTRACK

Link	Providers	Tags
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml		vendor-advisoryx_refsource_CISCOPatchVendor Advisory
http://www.securitytracker.com/id?1022847		vdb-entryx_refsource_SECTRACK

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Sep 8, 2009

Updated Sep 17, 2024

Reserved Feb 18, 2009

Link CVE-2009-0627

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2009-0627

Red Hat

Severity n/a

Public date n/a

Links CVE-2009-0627