How severe is CVE-2012-6396?

CVE-2012-6396 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2012-6396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6396?

CVE-2012-6396 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-2012-6396?

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

When was CVE-2012-6396 published?

CVE-2012-6396 was published on 2013-01-19 and last updated on 2026-06-16.

CVE-2012-6396

CVE-2012-6396 is a medium-severity vulnerability in Cisco Nx-os with a CVSS 2.0 base score of 4.9. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 4.9)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Nx-os
Published: 2013-01-19
Last modified: 2026-06-16

Description

Cisco NX-OS on Nexus 7000 series switches does not properly handle certain line-card replacements, which might allow remote authenticated users to cause a denial of service (memory consumption) via a crafted configuration that references interfaces that do not exist on the new card, aka Bug ID CSCud44300.

Frequently asked questions

What is CVE-2012-6396?: Cisco NX-OS on Nexus 7000 series switches does not properly handle certain line-card replacements, which might allow remote authenticated users to cause a denial of service (memory consumption) via a crafted configuration that references interfaces that do not exist on the new card, aka Bug ID CSCud44300.
How severe is CVE-2012-6396?: CVE-2012-6396 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2012-6396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6396?: CVE-2012-6396 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-2012-6396?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-6396 published?: CVE-2012-6396 was published on 2013-01-19 and last updated on 2026-06-16.

References

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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