CVE-2021-35973
9.8
CRITICAL · CVSS 3.1 · EPSS 3.1% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
NETGEAR WAC104 devices before 1.0.4.15 are affected by an authentication bypass vulnerability in /usr/sbin/mini_httpd, allowing an unauthenticated attacker to invoke any action by adding the ¤tsetting.htm substring to the HTTP query, a related issue to CVE-2020-27866. This directly allows the attacker to change the web UI password, and eventually to enable debug mode (telnetd) and gain a shell on the device as the admin limited-user account (however, escalation to root is simple because of weak permissions on the /etc/ directory).
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 | 3.06% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-697 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-06-30 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| netgear | wac104 |
| netgear | wac104 firmware |
References
→ the Explorer · watch your stack · NVD