NULL Pointer Dereference Affecting M2Team/NanaZip package, versions [,6.5.1749.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Jul 2026
- disclosed10 Jul 2026
- creditUnknown
Introduced: 10 Jul 2026
CVE-2026-55783 (opens in a new tab)How to fix?
Upgrade M2Team/NanaZip to version 6.5.1749.0 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the Extract function when the archive engine passes a NULL Indices array and NumItems as 0xFFFFFFFF. An attacker can cause a process crash by triggering extraction or testing of the entire archive using specially crafted archives.