CVE-2023-26588: Buffalo Bs-GS2008 Firmware

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Use of hard-coded credentials vulnerability in Buffalo network devices allows an attacker to access the debug function of the product. The affected products and versions are as follows: BS-GSL2024 firmware Ver. 1.10-0.03 and earlier, BS-GSL2016P firmware Ver. 1.10-0.03 and earlier, BS-GSL2016 firmware Ver. 1.10-0.03 and earlier, BS-GS2008 firmware Ver. 1.0.10.01 and earlier, BS-GS2016 firmware Ver. 1.0.10.01 and earlier, BS-GS2024 firmware Ver. 1.0.10.01 and earlier, BS-GS2048 firmware Ver. 1.0.10.01 and earlier, BS-GS2008P firmware Ver. 1.0.10.01 and earlier, BS-GS2016P firmware Ver. 1.0.10.01 and earlier, and BS-GS2024P firmware Ver. 1.0.10.01 and earlier

Affected products

• Buffalo Bs-GS2008 Firmware: up to and including 1.0.10.01
• Buffalo Bs-GS2008P Firmware: up to and including 1.0.10.01
• Buffalo Bs-GS2016 Firmware: up to and including 1.0.10.01
• Buffalo Bs-GS2016HP Firmware: before 1.1.7.01 (fixed in 1.1.7.01)
• Buffalo Bs-GS2016P Firmware: up to and including 1.0.10.01; before 1.1.7.01 (fixed in 1.1.7.01)
• Buffalo Bs-GS2024 Firmware: up to and including 1.0.10.01
• Buffalo Bs-GS2024HP Firmware: before 1.1.7.01 (fixed in 1.1.7.01)
• Buffalo Bs-GS2024P Firmware: up to and including 1.0.10.01; before 1.1.7.01 (fixed in 1.1.7.01)
• Buffalo Bs-GS2048 Firmware: up to and including 1.0.10.01
• Buffalo Bs-GSL2005 Firmware: before 1.12-0.01 (fixed in 1.12-0.01)
• Buffalo Bs-GSL2005P Firmware: before 1.11-0.01 (fixed in 1.11-0.01)
• Buffalo Bs-GSL2008 Firmware: before 1.12-0.01 (fixed in 1.12-0.01)
• Buffalo Bs-GSL2008P Firmware: before 1.11-0.01 (fixed in 1.11-0.01)
• Buffalo Bs-GSL2016 Firmware: up to and including 1.10-0.03
• Buffalo Bs-GSL2016P Firmware: up to and including 1.10-0.03
• Buffalo Bs-GSL2024 Firmware: up to and including 1.10-0.03

Published 2023-04-11. Last modified 2026-06-17.