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Vulnerability record · CVE-2012-1357 · published 6 August 2012

CVE-2012-1357: Cisco nx-os memory buffer overflow vulnerability

Cisco · Nx Os

The igmp_snoop_orib_fill_source_update function in the IGMP process in NX-OS 5.0 and 5.1 on Cisco Nexus 5000 series switches allows remote attackers to cause a denial of service (device reload) via IGMP packets, aka Bug ID CSCts46521.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 32.0% CWE-119 · Memory buffer overflow
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

The igmp_snoop_orib_fill_source_update function in the IGMP process in NX-OS 5.0 and 5.1 on Cisco Nexus 5000 series switches allows remote attackers to cause a denial of service (device reload) via IGMP packets, aka Bug ID CSCts46521.

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

Affected products

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

References

LinkTags
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_1_3_N1_1/Nexus5000_Release_Notes_5_ Vendor Advisory
http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_1_3_N1_1/Nexus5000_Release_Notes_5_ Vendor Advisory

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

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Source: NIST National Vulnerability Database (record CVE-2012-1357), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.