5.5

CVE-2026-42443

NanaZip: Integer divide-by-zero in NanaZip UFS inode offset calculation

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
M2team ≫ Nanazip Version >= 5.0.1252.0 < 6.0.1698.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.016
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
security-advisories@github.com 3.3 1.8 1.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE-369 Divide By Zero

The product divides a value by zero.

https://github.com/M2Team/NanaZip/security/advisories/GHSA-3x2h-gqqw-g3gm
Vendor Advisory
Mitigation