CVE-2026-42443

3.3 LOW

NanaZip is an open source file archive

Published: 2026-05-12 · Last updated: 2026-05-18

Severity and scoring

CVSS: 3.3 LOW
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE: CWE-369

Affected products

Vendor	Product
m2team	nanazip

Description

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an integer divide-by-zero exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the superblock field fs_ipg (inodes per cylinder group) is set to zero. The parser uses this attacker-controlled value as a divisor without validation, causing an immediate hardware trap and process crash. This vulnerability is fixed in 6.0.1698.0.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-42443
[Vendor advisory]https://github.com/M2Team/NanaZip/security/advisories/GHSA-3x2h-gqqw-g3gm

Related CVEs

Same vendor

CVE-2026-42444 — NanaZip is an open source file archive (3.3 LOW)
CVE-2026-42442 — NanaZip is an open source file archive (3.3 LOW)
CVE-2026-42355 — NanaZip is an open source file archive (3.3 LOW)

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