CVE-2023-28769
9.8
CRITICAL · CVSS 3.1 · EPSS 5.4% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
The buffer overflow vulnerability in the library “libclinkc.so” of the web server “zhttpd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 5.42% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2023-04-27 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| zyxel | dx5401-b0 |
| zyxel | dx5401-b0 firmware |
References
→ the Explorer · watch your stack · NVD