CVE-2021-3297

PoC —

CVSS 3.1

7.8 high

EPSS

21%p97

Published

Jan 26, 2021 (Jan 26, 2021)

Modified

Jun 17, 2026

Description

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

Vendors: zyxel
Products: nbg2105 firmware
Weakness: CWE-287
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (20.5%)

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