CVE-2026-47224: NanaZip: Heap buffer-overflow read in NanaZip LVM metadata CRC check
NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap buffer-overflow read exists in the LVM2 physical-volume metadata parser in NanaZip (via the upstream 7-Zip LvmHandler). The vulnerability is triggered when opening a crafted LVM disk image. This issue has been patched in stable version 6.0.1698.0 and preview version 6.5.1742.0.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
NanaZipto a version that resolves this vulnerability.Fixed in 6.0.1698.0 - Upgrade
Upgrade
NanaZipto a version that resolves this vulnerability.Fixed in 6.5.1742.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47224?
The severity of CVE-2026-47224 is rated as medium with a score of 4.3.
How do I fix CVE-2026-47224?
To fix CVE-2026-47224, upgrade NanaZip to version 6.0.1698.0 or later.
What causes CVE-2026-47224?
CVE-2026-47224 is caused by a heap buffer-overflow read in the LVM2 physical-volume metadata parser in NanaZip.
Which versions of NanaZip are affected by CVE-2026-47224?
CVE-2026-47224 affects NanaZip versions from 3.0.1000.0 to just before 6.0.1698.0.
What kind of vulnerability is CVE-2026-47224?
CVE-2026-47224 is a heap buffer-overflow read vulnerability.