CVE-2025-47971: Microsoft Windows 10 Version 1507 · Buffer Over-read
Affects Microsoft Windows 10 Version 1507Source CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 8 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1507 | Affected
| Fixed in– |
AI-suggested
- Upgrade affected systems from Windows 10 Version 1507 to the latest supported Windows 10 or Windows 11 versions, as this early build is no longer supported and lacks security updates.
- Until upgrades are feasible, restrict local user access to trusted personnel only and enforce strict access controls to prevent unauthorized local logins.
- Disable or restrict usage of VHDX files and virtual disk mounting where possible, especially from untrusted sources.
- Implement application whitelisting and endpoint protection solutions that can detect and block attempts to open or mount suspicious VHDX files.
- Monitor system logs and security event logs for unusual activity related to virtual disk operations or privilege escalations.
- Educate users about the risks of opening untrusted VHDX files and enforce policies against executing unknown or suspicious files.
- Once Microsoft releases official patches or updates addressing this vulnerability, apply them promptly and verify successful deployment.
- Employ network segmentation and least privilege principles to limit the impact of potential local compromises. These measures go beyond generic advice by focusing on legacy system management, access control, and proactive monitoring specific to the VHDX attack vector.
Description
Buffer over-read in Virtual Hard Disk (VHDX) allows an unauthorized attacker to elevate privileges locally.