ByteOS Network

NVD Vulnerability Details :

CVE-2026-42443

Analyzed

Source-security-advisories@github.com

Published At-12 May, 2026 | 20:16

Updated At-18 May, 2026 | 13:46

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	3.3	LOW	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Primary	3.1	5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Type: Secondary

Version: 3.1

Base score: 3.3

Base severity: LOW

Vector:

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Type: Primary

Version: 3.1

Base score: 5.5

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CPE Matches

m2team>>nanazip>>Versions from 5.0.1252.0(inclusive) to 6.0.1698.0(exclusive)

cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-369	Primary	security-advisories@github.com

CWE ID: CWE-369

Type: Primary

Source: security-advisories@github.com

References

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

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

Source: security-advisories@github.com

Resource:

Mitigation

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History