CVE-2026-7273 Zyxel GS1900-48HPv2 Firmware
A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
- CVSS
- 8.8 High
- EPSS
- 2.7%
- Percentile
- 86
- Published
- 2026-06-16
- Force
- 9 of 12
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
On CISA’s exploited list
Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
- Added
- 2026-09-21
- Federal patch deadline
- 2026-09-24
- Ransomware use
- not known