KEV Entry

CVE-2021-3297

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-3297

2025-09-16 00:00 UTC

Timestamps

2025-09-16

2025-09-16

Scope

KEVIntel entry: On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access. | Affected: Zyxel / NBG2105 | CVSS: 7.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-3297', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-3297'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-3297'}

f07c3869-6232-44a9-9d0a-cf9962c24f9c

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2025-09-16T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 7.8,
  "cvss_severity": "HIGH",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "NBG2105",
  "title": "On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.",
  "used_in_malware": "unknown",
  "vendor": "Zyxel"
}
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