Vulnerability · Published Jun 5, 2023 · Assigned by Zyxel
CVE-2023-27989
Medium 6.5
In plain English
A medium-severity buffer overflow in NR7101 firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.0%top 36.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | NR7101 firmware | < V1.00(ABUV.8)C0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H