Update Integrity Verification Vulnerability in Notepad++ by Notepad++

CVE-2025-15556

What is CVE-2025-15556?

Notepad++ versions prior to 8.8.9, when utilizing the WinGUp updater, exhibit a significant vulnerability where the integrity of update metadata and installers is not subjected to cryptographic verification. This flaw allows an attacker to intercept or alter update traffic, leading to the potential for malicious installers to be downloaded and executed. Consequently, this may result in arbitrary code execution under the privileges of the user, posing a serious security risk to affected systems.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch →

References