CVE-2026-44215

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.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936	Exploit Mitigation Vendor Advisory
https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

14 May 2026, 15:48

Type	Values Removed	Values Added
References	~~() https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936 -~~	() https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936 - Exploit, Mitigation, Vendor Advisory
CPE		cpe:2.3:a:m2team:nanazip::::::::
First Time		M2team M2team nanazip

13 May 2026, 16:26

Type	Values Removed	Values Added
References	~~() https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936 -~~	() https://github.com/M2Team/NanaZip/security/advisories/GHSA-44wh-7gc3-w936 -

12 May 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-12 20:16

Updated : 2026-05-14 15:48

NVD link : CVE-2026-44215

Mitre link : CVE-2026-44215

CVE.ORG link : CVE-2026-44215

JSON object : View

Products Affected

m2team

nanazip

CWE

CWE-787

Out-of-bounds Write

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