Integer Underflow (Wrap or Wraparound) Affecting M2Team/NanaZip package, versions [5.0.1252.0,6.0.1638.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-UNMANAGED-M2TEAMNANAZIP-15364903
- published28 Feb 2026
- disclosed26 Feb 2026
- creditHO9
Introduced: 26 Feb 2026
CVE-2026-27710 (opens in a new tab)How to fix?
Upgrade M2Team/NanaZip to version 6.0.1638.0 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) via the .NET Single File Application parser. An attacker can cause excessive memory allocation and potentially crash the application by submitting a specially crafted archive bundle.