CVE-2026-27014— NanZip has ROMFS Archive Infinite Loop / Stack Overflow
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 5.0.1252.0版本至6.0.1630.0之前版本存在安全漏洞，该漏洞源于ROMFS存档解析器中循环NextOffset链和深度嵌套目录，可能导致无限循环和堆栈溢出。
Possible ATT&CK Techniques 1 AI
T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2026-27014
Vulnerability Information
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Vulnerability Title
NanZip has ROMFS Archive Infinite Loop / Stack Overflow
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, circular `NextOffset` chains cause an infinite loop, and deeply nested directories cause unbounded recursion (stack overflow) in the ROMFS archive parser. 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:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
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 5.0.1252.0版本至6.0.1630.0之前版本存在安全漏洞，该漏洞源于ROMFS存档解析器中循环NextOffset链和深度嵌套目录，可能导致无限循环和堆栈溢出。
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
II. Public POCs for CVE-2026-27014
| # | POC Description | Source Link | Shenlong Link |
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Same Patch Batch · M2Team · 2026-02-19 · 3 CVEs total
| CVE-2026-26282 | NanaZip has DotNet Single file OOB Heap Read | |
| CVE-2026-27114 | NanaZip has ROMFS Archive Infinite Loop |
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V. Comments for CVE-2026-27014
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