CVE-2026-8931 CRITICAL

CVE-2026-8931: Critical RCE vulnerability in Disig Web Signer

Vendor Disig
Product Web Signer
Published June 1, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

What the vulnerability does

01Description

A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 1, 2026 Record updated