How severe is CVE-2013-1226?

CVE-2013-1226 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2013-1226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1226?

CVE-2013-1226 primarily affects Cisco Nx-os. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1226?

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

When was CVE-2013-1226 published?

CVE-2013-1226 was published on 2013-04-29 and last updated on 2026-06-16.

CVE-2013-1226

CVE-2013-1226 is a medium-severity vulnerability in Cisco Nx-os with a CVSS 2.0 base score of 6.1. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Nx-os
Published: 2013-04-29
Last modified: 2026-06-16

Description

The Ethernet frame-forwarding implementation in Cisco NX-OS on Nexus 7000 devices allows remote attackers to cause a denial of service (forwarding loop and service outage) via a crafted frame, aka Bug ID CSCug47098.

Frequently asked questions

What is CVE-2013-1226?: The Ethernet frame-forwarding implementation in Cisco NX-OS on Nexus 7000 devices allows remote attackers to cause a denial of service (forwarding loop and service outage) via a crafted frame, aka Bug ID CSCug47098.
How severe is CVE-2013-1226?: CVE-2013-1226 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2013-1226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1226?: CVE-2013-1226 primarily affects Cisco Nx-os. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1226 published?: CVE-2013-1226 was published on 2013-04-29 and last updated on 2026-06-16.

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1226

Affected products (5)

cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:*

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