CVEvulnerability
CVE-2021-3297
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-01-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-287
Description
On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.
Affected configurations
• zyxel nbg2105 firmware v1.00\(aagu.2\)c0
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://codeberg.org/nieldk/vulnerabilities/src/branch/main/zyxel%20nbg2105/Admin%20bypass codeberg.org
- https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass Exploit, Third Party Advisory
- https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105 Product, Vendor Advisory
- https://www.zyxel.com/us/en/support/security_advisories.shtml Vendor Advisory
- https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypass Exploit, Third Party Advisory
- https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NBG2105 Product, Vendor Advisory
- https://www.zyxel.com/us/en/support/security_advisories.shtml Vendor Advisory