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

26 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) NanaZip es un archivador de archivos de código abierto. Desde 5.0.1252.0 hasta antes de 6.0.1698.0, existe una escritura nula fuera de límites de un byte en el heap en el analizador de imágenes de sistemas de archivos UFS/UFS2 en NanaZip. La vulnerabilidad se activa al abrir una imagen de sistema de archivos UFS manipulada. El atacante controla el desplazamiento de bytes de la escritura dentro de una ventana de aproximadamente 254 bytes más allá del límite de asignación del heap. Esta vulnerabilidad está corregida en 6.0.1698.0.

Information

Published : 2026-05-12 20:16

Updated : 2026-10-26 18:10

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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