CVE-2025-47957
Published: 10 June 2025
Summary
CVE-2025-47957 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Office Long Term Servicing Channel. Its CVSS base score is 8.4 (High).
Operationally, ranked in the top 18.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-47957 is a use-after-free vulnerability, tracked under CWE-416, that affects Microsoft Office Word. The flaw carries a CVSS 3.1 base score of 8.4 and permits an attacker to execute arbitrary code on an affected system.
An unauthorized attacker with local access can exploit the issue without requiring user interaction, elevated privileges, or special configuration. Successful exploitation grants full control over confidentiality, integrity, and availability on the target host.
Microsoft has published an advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47957 that details available updates and mitigation steps. The EPSS score has remained low, with a current value of 0.0150 and a peak of 0.0202.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-17762
Vulnerability details
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
- 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.