cvedb.io
CVE-2026-55783
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-07-10T17:17:00.147 · Last modified 2026-07-10T19:17:26.120

Summary

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's seven in-house IInArchive handlers in NanaZip.Codecs unconditionally dereference the caller-supplied Indices array inside Extract when the archive engine signals extract everything by passing Indices as NULL and NumItems as 0xFFFFFFFF. This causes a NULL pointer dereference in the standard Test archive or Extract all code path for WebAssembly, ElectronAsar, Zealfs, Romfs, Ufs, Littlefs, and DotNetSingleFile archives, resulting in a process crash. This issue is fixed in version 6.5.1749.0.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.