Vulnerability Description
On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Nbg2105 Firmware | v1.00\(aagu.2\)c0 |
| Zyxel | Nbg2105 | - |
Related Weaknesses (CWE)
References
- https://codeberg.org/nieldk/vulnerabilities/src/branch/main/zyxel%20nbg2105/Admi
- https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypaExploitThird Party Advisory
- https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NProductVendor Advisory
- https://www.zyxel.com/us/en/support/security_advisories.shtmlVendor Advisory
- https://github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypaExploitThird Party Advisory
- https://www.zyxel.com/support/SupportLandingSR.shtml?c=gb&l=en&kbid=M-01490&md=NProductVendor Advisory
- https://www.zyxel.com/us/en/support/security_advisories.shtmlVendor Advisory
FAQ
What is CVE-2021-3297?
CVE-2021-3297 is a vulnerability with a CVSS score of 7.8 (HIGH). On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.
How severe is CVE-2021-3297?
CVE-2021-3297 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3297?
Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Nbg2105 Firmware, Zyxel Nbg2105.