CVE-2022-26259
Xiongmai
- Published
- 28 March 2022
- Last modified
- 17 June 2026
- CVSS
- 7.8 v3.1
- Severity
- high
- EPSS
- 2.4% (83th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-120
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 2.4% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| AHB80N16T-GS | Xiongmai | unknown | 4.03.r11.7601.nat.onvifc.20211223 |
| AHB80N32F4-LME | Xiongmai | unknown | 4.03.r11.7601.nat.onvifc.20211228 |
| AHB80X04-R-MH-V3 | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210729 |
| AHB80X04R-MH | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210729 |
| AHB80X04R-MH-V2 | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210729 |
| NBD80X08S-KL | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210727 |
| NBD80X09RA-KL | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210727 |
| NBD80X09S-KL | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210727 |
| NBD80X16S-KL | Xiongmai | unknown | 4.03.r11.nat.dss.onvifc.20210727 |
| NBD90S0VT-QW | Xiongmai | unknown | 4.03.r11.713g.nat.onvifc.2021 |
References
Vendor advisory and patch
- https://www.xiongmaitech.com/en/index.php/service/notice_info/51/2
- https://www.xiongmaitech.com/en/index.php/service/notice_info/51/2
- https://blog.ret2.me/post/2022-01-26-exploiting-xiongmai-dvrs/ exploit
- https://blog.ret2.me/post/2022-01-26-exploiting-xiongmai-dvrs/ exploit
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.