Description
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a one-byte heap out-of-bounds null write exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS filesystem image. The attacker controls the byte offset of the write within a ~254-byte window past the heap allocation boundary. This vulnerability is fixed in 6.0.1698.0.
Affected products
m2team: nanazip
References2
- github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w9… ExploitMitigationVendor Advisory
- github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w9… ExploitMitigationVendor Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H - EPSS — exploit probability
- 0% percentile: 20 · as of 14 November 2026
- CWE
- CWE-787
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