CVE-2026-27711
Medium
Description
NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, a memory corruption vulnerability in NanaZip’s UFS parser allows a crafted `.ufs/.ufs2/.img` file to trigger out-of-bounds memory access during archive open/listing. The bug is reachable via normal user file-open flow and can cause process crash, hang, and potentially exploitable heap corruption. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.
SeverityMedium
CVSS6.6
Exploit probability—
ProductM2team Nanazip
PublishedFeb 26, 2026
First seenFeb 26, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- m2team nanazip6.0.1638.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| m2team nanazip | 5.0.1252.0 ≤ v < 6.0.1638.0 | 6.0.1638.0 |
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