CVE-2025-27727
Published: 08 April 2025
Summary
CVE-2025-27727 is a high-severity Link Following (CWE-59) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 20.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-27727 is an improper link resolution before file access vulnerability, also known as a link-following issue and tracked under CWE-59, that affects the Windows Installer component. The flaw carries a CVSS 3.1 base score of 7.8 and permits an attacker who already possesses local access to elevate privileges on the affected system.
An authorized local attacker can exploit the weakness without user interaction to gain elevated rights, resulting in high impact to confidentiality, integrity, and availability on the host. The attack is local only and requires the attacker to have a valid user account on the target Windows system.
Microsoft has published an advisory for CVE-2025-27727 in its security update guide that details available patches and remediation steps. The current EPSS score of 0.0117 with a recorded peak of 0.0149 indicates low and relatively stable exploitation probability since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-10151
Vulnerability details
Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.