Buffer Overflow vulnerability in NBD80S09S-KLC v.YK_HZXM_NBD80S09S-KLC_V4.03.R11.7601.Nat.OnvifC.20230414.bin and NBD80N32RA-KL-V3 v.YK_HZXM_NBD80N32RA-KL_V4.03.R11.7601.Nat.OnvifC.20220120.bin allows a remote attacker to casue a denial of service via a crafted request to the service.XM component.
Conclusion & alert: CVE-2023-39068 is rated Moderate Risk (45.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.62%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.05% | 0.62% | -0.42% |
| 2 | 2026-06-06 | 0.84% | 1.05% | +0.21% |
| 3 | 2025-11-21 | — | 0.84% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xiongmaitech | nb080s09s-klc_firmware | yk_hzxm_nbd80s09s-klc_v4.03.r11.7601.nat.onvifc.20230414 | cpe:2.3:o:xiongmaitech:nb080s09s-klc_firmware:yk_hzxm_nbd80s09s-klc_v4.03.r11.7601.nat.onvifc.20230414:*:*:*:*:*:*:* |
| xiongmaitech | nbd80n32ra-kl-v3_firmware | yk_hzxm_nbd80n32ra-kl_v4.03.r11.7601.nat.onvifc.20220120 | cpe:2.3:o:xiongmaitech:nbd80n32ra-kl-v3_firmware:yk_hzxm_nbd80n32ra-kl_v4.03.r11.7601.nat.onvifc.20220120:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.xiongmaitech.com/en/index.php/service/notice_info/51/3 | Vendor Advisory |