CVE-2023-37378
Linux Debian vulnerability analysis and mitigation

Overview

CVE-2023-37378 affects Nullsoft Scriptable Install System (NSIS) versions before 3.09. The vulnerability was discovered in July 2023 and involves improper access control handling for the uninstaller directory (NVD, Debian Security).

Technical details

The vulnerability has a CVSS v3.1 base score of 5.3 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. The issue stems from insufficient access control restrictions on the uninstaller directory, which could allow privilege escalation (NVD, CISA).

Impact

Successful exploitation of this vulnerability could allow an attacker to misuse the vulnerability and escalate privileges. This is particularly concerning in scenarios where installers run with SYSTEM privileges, as any user could potentially gain SYSTEM privileges by exploiting this vulnerability (CISA).

Mitigation and workarounds

The vulnerability has been fixed in NSIS version 3.09. The fix includes using isolated uninstaller directories for every instance and implementing proper access control restrictions. Users and organizations are recommended to upgrade to version 3.09 or later (NSIS Release, Debian Security).

Additional resources


SourceThis report was generated using AI

Related Linux Debian vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-59030HIGH7.5
  • Linux DebianLinux Debian
  • pdns-recursor
NoYesDec 09, 2025
CVE-2025-59029MEDIUM5.3
  • Linux DebianLinux Debian
  • pdns-recursor
NoYesDec 09, 2025
CVE-2025-40344N/AN/A
  • Linux KernelLinux Kernel
  • kernel-debug-modules-internal
NoYesDec 09, 2025
CVE-2025-40343N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k-debug-devel
NoYesDec 09, 2025
CVE-2025-40342N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k-debug-devel-matched
NoYesDec 09, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management