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Product
GS1900-16 firmware
by Zyxel · last CVE Jun 16, 2026
On CISA KEVExploited in the wild
16
CVEs
1
On KEV
9.8
Max CVSS
0
New 30D
Vulnerabilities16In the news2Timeline
Severity mix
Critical 2High 6Medium 8Low 0
Severity
All severities16Critical2High6Medium8Low0
Exploitation
On CISA KEV1Exploited in the wild1
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Add GS1900-16 firmware to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2019-15800
9.8
4%
Nov 14
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0
Affected: before 2.50\(aahj.0\)c0
CVE-2019-15803
9.1
1%
Nov 14
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0
Affected: before 2.50\(aahj.0\)c0
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