CVE-2021-22276: Abb System Access Point 127v Firmware

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

The vulnerability allows a successful attacker to bypass the integrity check of FW uploaded to the free@home System Access Point.

Affected products

• Abb System Access Point 127v Firmware: before 2.6.4 (fixed in 2.6.4)
• Abb System Access Point 2.0 Firmware: before 2.6.4 (fixed in 2.6.4)
• Abb Wl-System Access Point 127v Firmware: before 2.6.4 (fixed in 2.6.4)
• Abb Wl-System Access Point 2.0 Firmware: before 2.6.4 (fixed in 2.6.4)
• Abb Wl-System Access Point Firmware: before 2.6.4 (fixed in 2.6.4)

Published 2021-09-23. Last modified 2026-06-17.