8.8
/ 10
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
AI Analysis
Stack-based buffer overflow in the CGI program of Zyxel GS1900 series switches
Basic Information
ID
CVE-2026-7273
Source
Zyxel
Published
Jun 16, 2026 at 02:20
Affected Product
Vendor
Zyxel
Product
GS1900-48HPv2 firmware
Version
<= 2.90(ABTQ.1)C0
Affected Versions
Zyxel GS1900-48HPv2 firmware <= 2.90(ABTQ.1)C0
Zyxel GS1900-8 firmware <= 2.90(AAHH.1)C0
Zyxel GS1900-8HP firmware <= 2.90(AAHI.1)C0
Zyxel GS1900-10HP firmware <= 2.90(AAZI.1)C0
Zyxel GS1900-16 firmware <= 2.90(AAHJ.1)C0
Zyxel GS1900-24 firmware <= 2.90(AAHL.1)C0
Zyxel GS1900-24E firmware <= 2.90(AAHK.1)C0
Zyxel GS1900-24EP firmware <= 2.90(ABTO.1)C0
Zyxel GS1900-24HPv2 firmware <= 2.90(ABTP.1)C0
Zyxel GS1900-48 firmware <= 2.90(AAHN.1)C0
Zyxel GS1900-8 firmware <= 2.90(AAHH.1)C0
Zyxel GS1900-8HP firmware <= 2.90(AAHI.1)C0
Zyxel GS1900-10HP firmware <= 2.90(AAZI.1)C0
Zyxel GS1900-16 firmware <= 2.90(AAHJ.1)C0
Zyxel GS1900-24 firmware <= 2.90(AAHL.1)C0
Zyxel GS1900-24E firmware <= 2.90(AAHK.1)C0
Zyxel GS1900-24EP firmware <= 2.90(ABTO.1)C0
Zyxel GS1900-24HPv2 firmware <= 2.90(ABTP.1)C0
Zyxel GS1900-48 firmware <= 2.90(AAHN.1)C0
CWE Classification
AI Assessment
AI Score
8.8 / 10
AI Severity
High
Vendor
Zyxel
Product
GS1900 series switches
Version
2.90(ABTQ.1)C0, 2.90(AAHH.1)C0, 2.90(AAHI.1)C0, 2.90(AAZI.1)C0, 2.90(AAHJ.1)C0, 2.90(AAHL.1)C0, 2.90(AAHK.1)C0, 2.90(ABTO.1)C0, 2.90(ABTP.1)C0, 2.90(AAHN.1)C0