CVE-2015-4323: Cisco Mds 9000 NX-OS

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

Buffer overflow in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 7.3(0)ZN(0.9); Nexus 3000 devices 6.0(2)U5(1.41), 7.0(3)I2(0.373), and 7.3(0)ZN(0.83); Nexus 4000 devices 4.1(2)E1(1b); Nexus 7000 devices 6.2(14)S1; Nexus 9000 devices 7.3(0)ZN(0.9); and MDS 9000 devices 6.2 (13) and 7.1(0)ZN(91.99) and MDS SAN-OS 7.1(0)ZN(91.99) allows remote attackers to cause a denial of service (device outage) via a crafted ARP packet, related to incorrect MTU validation, aka Bug IDs CSCuv71933, CSCuv61341, CSCuv61321, CSCuu78074, CSCut37060, CSCuv61266, CSCuv61351, CSCuv61358, and CSCuv61366.

Affected products

• Cisco Mds 9000 NX-OS: version 6.2(13) only; version 7.1(0)zn(91.99) only
• Cisco NX-OS: version 6.2(14)s1 only; version 6.0(2)u5(1.41) only; version 7.0(3)i2(0.373) only; version 7.3(0)zn(0.83) only; version 7.3(0)zn(0.9) only; version 4.1(2)e1(1b) only

Published 2015-08-19. Last modified 2026-06-17.