🔐 CVE Alert

CVE-2026-4795

MEDIUM 6.5
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

A missing authorization vulnerability in Zyxel GS1200-5v3 firmware versions through 1.00(ACPS.2)C0, GS1200-8v3 firmware versions through 1.00(ACPT.2)C0,  GS1200-5HPv3 firmware versions through 1.00(ACPU.2)C0, GS1200-8HPv3 firmware versions through 1.00(ACPV.2)C0, and GS1200-10v3 firmware versions through 1.00(ACPW.2)C0 could allow a LAN-based, unauthenticated attacker to read the system configuration from a log file via a crafted HTTP request.

CWE CWE-862
Vendor zyxel
Product gs1200-5v3 firmware
Published May 26, 2026
Last Updated May 26, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Affected Versions

Zyxel / GS1200-5v3 firmware
<= 1.00(ACPS.2)C0
Zyxel / GS1200-8v3 firmware
<= 1.00(ACPT.2)C0
Zyxel / GS1200-5HPv3 firmware
<= 1.00(ACPU.2)C0
Zyxel / GS1200-8HPv3 firmware
<= 1.00(ACPV.2)C0
Zyxel / GS1200-10v3 firmware
<= 1.00(ACPW.2)C0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
zyxel.com: https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-missing-authorization-vulnerability-in-gs1200v3-series-switches-05-26-2026