CVE-2026-70062 Windows libarchive Remote Code Execution Vulnerability
An attacker can execute arbitrary code remotely via a double free vulnerability in the Windows libarchive component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-70062?
CVE-2026-70062 is a high-severity use after free vulnerability in Microsoft Windows 10 1809, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Double free in Windows Libarchive allows an unauthorized attacker to execute code over a network.
Weakness: CWE-415
Which versions are affected by CVE-2026-70062?
It affects 11 products.
Products include Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2 and 5 more.
How do I fix CVE-2026-70062?
No fix has been published for CVE-2026-70062 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-70062 being exploited?
There is no known exploitation of CVE-2026-70062 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1809
- CVE-2024-29988 Microsoft SmartScreen Prompt Security Feature Bypass
- CVE-2024-21412 Microsoft Windows Internet Shortcut Files Security Feature Bypass
- CVE-2025-62221 Microsoft Windows Use After Free
- CVE-2025-30400 Microsoft Windows DWM Core Library Use-After-Free
- CVE-2024-21338 Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control
Sources
Also known as GHSA-g6pv-h986-vxr8.