VULNERABILITY INTELLIGENCE
CVE-2021-35034
CVSS score7.4 HIGH
EPSS probability1.08%
CISA KEVNot currently listed
Published2021-12-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
An insufficient session expiration vulnerability in the CGI program of the Zyxel NBG6604 firmware could allow a remote attacker to access the device if the correct token can be intercepted.
Weakness classification
- security@zyxel.com.tw: CWE-613
- nvd@nist.gov: CWE-613
Primary references
- security@zyxel.com.tw — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory