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CVE-2026-26282— NanaZip has DotNet Single file OOB Heap Read

Quick assessment

Affected
M2Team NanaZip
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NanaZip是M2-Team开源的一个压缩软件。 NanaZip 6.0.1630.0之前版本存在安全漏洞，该漏洞源于.NET Single File捆绑包头解析器缺少边界检查，可能导致越界堆读取。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-26282

Vulnerability Information
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Vulnerability Title
NanaZip has DotNet Single file OOB Heap Read
Source: CVE Program / CVE List V5
Vulnerability Description
NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an out-of-bounds heap read in `.NET Single File` bundle header parser due to missing bounds check. Opening a crafted file with NanaZip causes a crash or leaks heap data to the user. Version 6.0.1630.0 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
NanaZip 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanaZip是M2-Team开源的一个压缩软件。 NanaZip 6.0.1630.0之前版本存在安全漏洞，该漏洞源于.NET Single File捆绑包头解析器缺少边界检查，可能导致越界堆读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
M2Team NanaZip >= 5.0.1252.0, < 6.0.1630.0 -

II. Public POCs for CVE-2026-26282

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III. Intelligence Information for CVE-2026-26282

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Vendor Advisories for CVE-2026-26282 (1)

Other References for CVE-2026-26282 (1)

Same Patch Batch · M2Team · 2026-02-19 · 3 CVEs total

CVE-2026-27114 NanaZip has ROMFS Archive Infinite Loop
CVE-2026-27014 NanZip has ROMFS Archive Infinite Loop / Stack Overflow

IV. Related Vulnerabilities

Same product: NanaZip
Same vendor: M2Team
Same weakness: CWE-126

V. Comments for CVE-2026-26282

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