CVE-2013-1122

CVE-2013-1122 is a medium-severity vulnerability in Cisco Nx-os with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 1% (71st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Cisco Nx-os
• Published: 2013-02-13
• Last modified: 2026-06-16

Description

Cisco NX-OS on the Nexus 7000, when a certain Overlay Transport Virtualization (OTV) configuration is used, allows remote attackers to cause a denial of service (M1-Series module reload) via crafted packets, aka Bug ID CSCud15673.

Frequently asked questions

What is CVE-2013-1122?

Cisco NX-OS on the Nexus 7000, when a certain Overlay Transport Virtualization (OTV) configuration is used, allows remote attackers to cause a denial of service (M1-Series module reload) via crafted packets, aka Bug ID CSCud15673.

How severe is CVE-2013-1122?

CVE-2013-1122 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-1122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1122?

CVE-2013-1122 primarily affects Cisco Nx-os. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1122?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-1122 published?

CVE-2013-1122 was published on 2013-02-13 and last updated on 2026-06-16.

References

• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1122

Affected products (72)

• cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(0\)n1\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(0\)n1\(2\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(0\)n1\(2a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(1a\)n1\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(1a\)n1\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(1a\)n2\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(1a\)n2\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(2\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(3\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(3a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(3b\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(3c\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.0\(4\)sv1\(3d\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1\(3\)n1\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1\(3\)n1\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1\(3\)n2\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1\(3\)n2\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1.\(2\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1.\(3\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1.\(4\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.1.\(5\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)n1\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)n2\(1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)n2\(1a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)sv1\(4\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)sv1\(4a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(1\)sv1\(5.1\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(2\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(3\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(4\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(6\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2\(8\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:4.2.\(2a\):*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:5.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:nx-os:5.0\(2\):*:*:*:*:*:*:*

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