CVE-2022-26259: Xiongmaitech AHB80N16T-Gs Firmware

High severity, CVSS 7.8. EPSS: 2.4% chance of exploitation in the next 30 days.

A buffer over flow in Xiongmai DVR devices NBD80X16S-KL, NBD80X09S-KL, NBD80X08S-KL, NBD80X09RA-KL, AHB80X04R-MH, AHB80X04R-MH-V2, AHB80X04-R-MH-V3, AHB80N16T-GS, AHB80N32F4-LME, and NBD90S0VT-QW allows attackers to cause a Denial of Service (DoS) via a crafted RSTP request.

Affected products

• Xiongmaitech AHB80N16T-Gs Firmware: version 4.03.r11.7601.nat.onvifc.20211223 only
• Xiongmaitech AHB80N32F4-Lme Firmware: version 4.03.r11.7601.nat.onvifc.20211228 only
• Xiongmaitech AHB80X04-R-Mh-v3 Firmware: version 4.03.r11.nat.dss.onvifc.20210729 only
• Xiongmaitech AHB80X04R-Mh-v2 Firmware: version 4.03.r11.nat.dss.onvifc.20210729 only
• Xiongmaitech AHB80X04R-Mh Firmware: version 4.03.r11.nat.dss.onvifc.20210729 only
• Xiongmaitech NBD80X08S-Kl Firmware: version 4.03.r11.nat.dss.onvifc.20210727 only
• Xiongmaitech NBD80X09RA-Kl Firmware: version 4.03.r11.nat.dss.onvifc.20210727 only
• Xiongmaitech NBD80X09S-Kl Firmware: version 4.03.r11.nat.dss.onvifc.20210727 only
• Xiongmaitech NBD80X16S-Kl Firmware: version 4.03.r11.nat.dss.onvifc.20210727 only
• Xiongmaitech NBD90S0VT-Qw Firmware: version 4.03.r11.713g.nat.onvifc.2021 only

Published 2022-03-28. Last modified 2026-06-17.