ZDI-26-542: Microsoft Windows UMPDDrvBitBlt Improper Object Management Local Privilege Escalation Vulnerability
ZDI discloses CVE-2026-62712, a CVSS 7.8 Windows UMPDDrvBitBlt improper object management flaw allowing local attackers to escalate privileges.
ZDI advisory ZDI-26-542 describes improper object management in Microsoft Windows' UMPDDrvBitBlt function, tracked as CVE-2026-62712 with a CVSS score of 7.8. The flaw allows local attackers to escalate privileges on affected Windows installations. Exploitation requires first obtaining the ability to execute low-privileged code on the target system.
- CVE-2026-62712: improper object management in Windows UMPDDrvBitBlt
- CVSS 7.8 local privilege escalation
- Requires prior low-privileged code execution on target
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-62712 | Heap Buffer Overflow in Windows Win32K Enables Local Privilege Escalation | 7.8 | <1% |
From the original article
This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.
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