PT-2026-57235 · Nanazip · Nanazip
CVE-2026-55780
·
Published
2026-07-10
·
Updated
2026-07-10
CVSS v4.0
2.4
Low
| Vector | AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Name of the Vulnerable Software and Affected Versions
NanaZip versions prior to 6.5.1749.0
Description
The .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp determines the extraction buffer size based on the
Size field of the bundle entry. This field is only checked for its sign and is not validated against the actual file size. A specially crafted bundle can trigger an attacker-controlled memory allocation within the Extract() function, leading to std::bad alloc or std::length error exceptions. These exceptions can cross the COM STDMETHODCALLTYPE boundary, resulting in a process crash.Recommendations
Update to version 6.5.1749.0.
Exploit
Fix
Resource Exhaustion
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Related Identifiers
Affected Products
Nanazip