CVE-2025-27480
Published: 08 April 2025
Summary
CVE-2025-27480 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Windows Server 2012. Its CVSS base score is 8.1 (High).
Operationally, ranked in the top 23.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-27480 is a use-after-free vulnerability (CWE-416) in the Remote Desktop Gateway Service that carries a CVSS 3.1 score of 8.1. The flaw resides in a Microsoft Windows component responsible for handling incoming RDP gateway traffic and permits remote code execution when triggered.
An unauthenticated attacker can exploit the issue over the network by sending specially crafted requests to an exposed Remote Desktop Gateway. Successful exploitation grants the attacker the ability to execute arbitrary code with the privileges of the service, satisfying the high impact ratings for confidentiality, integrity, and availability under high attack complexity.
Microsoft’s security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27480 describes the available patches and remediation steps. The associated EPSS score remains low, with a current value of 0.0094 and a peak of 0.0124.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-10183
Vulnerability details
Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.