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High severity7.8NVD Advisory· Published Jan 26, 2021· Updated Jun 17, 2026

CVE-2021-3297

CVE-2021-3297

Description

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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

Zyxel/Nbg2105 Firmware
cpe:2.3:o:zyxel:nbg2105_firmware:v1.00\(aagu.2\)c0:*:*:*:*:*:*:*
Zyxel/NBG2105cpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: = V1.00(AAGU.2)C0

Patches

Vulnerability mechanics

References

3

github.com/nieldk/vulnerabilities/blob/main/zyxel%20nbg2105/Admin%20bypassnvdExploitThird Party Advisory
www.zyxel.com/support/SupportLandingSR.shtmlnvdProductVendor Advisory
www.zyxel.com/us/en/support/security_advisories.shtmlnvdVendor Advisory

News mentions

0

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