CVE-2026-21718

CRITICAL

Copeland XWEB Pro <1.12.1 - Auth Bypass

Title source: llm
STIX 2.1

Description

An authentication bypass vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, enabling any attackers to bypass the authentication requirement and achieve pre-authenticated code execution on the system.

Scores

CVSS v3 10.0
EPSS 0.0005
EPSS Percentile 16.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-327
Status published
Products (3)
copeland/xweb_300d_pro_firmware < 1.12.1
copeland/xweb_500b_pro_firmware < 1.12.1
copeland/xweb_500d_pro_firmware < 1.12.1
Published Feb 27, 2026
Tracked Since Feb 27, 2026