CVE-2021-45573: NETGEAR AC2100 Firmware

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.

Affected products

• NETGEAR AC2100 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR AC2400 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR AC2600 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR r6260 Firmware: before 1.1.0.76 (fixed in 1.1.0.76)
• NETGEAR r6700 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR r6800 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR r6900 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)
• NETGEAR r7450 Firmware: before 1.2.0.62 (fixed in 1.2.0.62)

Published 2021-12-26. Last modified 2026-06-17.