CVE-2024-26239 Windows Telephony Server Elevation of Privilege Vulnerability
An attacker can exploit a heap-based buffer overflow in the Windows Telephony Server to gain elevated privileges on affected systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-26239?
CVE-2024-26239 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 9 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Telephony Server Elevation of Privilege Vulnerability
Weakness: CWE-122
Which versions are affected by CVE-2024-26239?
It affects 13 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2 and 7 more.
How do I fix CVE-2024-26239?
No fix has been published for CVE-2024-26239 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-26239 being exploited?
There is no known exploitation of CVE-2024-26239 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-3gj4-2qc3-888r.