7
/ 10
HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
GoSign Desktop versions 2.4.0 and earlier use an unsigned update manifest for distributing application updates. The manifest contains package URLs and SHA-256 hashes but is not digitally signed, so its authenticity relies solely on the underlying TLS channel. In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update.
Basic Information
ID
CVE-2025-34324
Source
VulnCheck
Published
Nov 18, 2025 at 16:33
Modified
Nov 18, 2025 at 18:24
Affected Product
Vendor
Tinexta InfoCert S.p.A.
Product
GoSign Desktop
Affected Versions
Tinexta InfoCert S.p.A. GoSign Desktop 0