HIGHCVSS 8.8Actively exploited · CISA KEV since 2026-09-21Vulnerability
CVE-2026-7273
Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
Properties
- Euvd product
- GS1900-24EP firmware, GS1900-24HPv2 firmware, GS1900-16 firmware, GS1900-8HP firmware, GS1900-48HPv2 firmware, GS1900-24E firmware, GS1900-24 firmware, GS1900-48 firmware, GS1900-8 Firmware, GS1900-10HP firmware
- Vulnerability name
- Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
- First seen
- 2026-09-22T03:55:39+00:00
- Cvss score
- 8.8
- Epss score
- 0.02778
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2026-09-24
- Euvd assigner
- Zyxel
- Retrieved at
- 2026-11-06T06:20:24+00:00
- Exploited euvd since
- 2026-09-21T00:00:00+00:00
- Src batch id
- euvd-20261026T073402Z-7ce603
- Source url
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-37030
- Date added
- 2026-09-21
- Euvd base score version
- 3.1
- Score
- 8.8
- Fetched at
- 2026-10-26T07:34:03+00:00
- Euvd vendor
- Zyxel
- Cvss vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-09-21T23:06:15+00:00
- Euvd base score
- 8.8
Related Entities (24)
AFFECTS_PRODUCT (20)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
MENTIONED_IN (1)
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