CVE-2025-43715 describes a local privilege escalation vulnerability in Nullsoft Scriptable Install System (NSIS) versions prior to 3.11 on Windows. An unprivileged local attacker can exploit a race condition during installation to place a malicious executable in a temporary plugins directory created under %WINDIR%\temp, leading to SYSTEM-level privileges. This vulnerability has a CVSS score of 8.1 (High), indicating a high impact on confidentiality, integrity, and availability, with high attack complexity due to the race condition. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, < 3.11CPE match | cpe:2.3:a:nullsoft:nullsoft_scriptable_install_system:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.