Detections
Analytics
CVE-2026-8931
critical
Description
A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.
References
https://www.disig.sk/sk/aktuality/dolezita-aktualizacia-aplikacie-web-signer/
https://www.disig.sk/en/news/important-update-of-the-web-signer-application/
https://qesportal.sk/Portal/sk/Info/News#websigner255
https://qesportal.sk/Portal/en/Info/News#websigner255
https://download.disigcdn.sk/cdn/products/websigner2/changelog.sk.txt
https://download.disigcdn.sk/cdn/products/websigner2/changelog.en.txt
Details
Published: 2026-06-01
Updated: 2026-06-01
Risk Information
CVSS v2
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
CVSS v3
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
CVSS v4
Base Score: 9.4
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
Severity: Critical
EPSS
EPSS: 0.00387