Vulnerability · Published Jun 12, 2026 · Assigned by GitHub_M

CVE-2026-47224NanaZip: Heap buffer-overflow read in NanaZip LVM metadata CRC check

Medium 4.3

In plain English

A medium-severity out-of-bounds read in NanaZip from M2Team. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 91.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
M2Team	NanaZip	>= 3.0.1000.0, < 6.0.1698.0

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References

https://github.com/M2Team/NanaZip/security/advisories/GHSA-qcgf-c2vp-fwjr x_refsource_CONFIRM