What is CVE-2026-27709?

CVE-2026-27709 is a medium-severity vulnerability in M2team Nanazip, classified under Out-of-bounds Read. CVSS score: 6.6/10. Published 2026-02-26.

How severe is CVE-2026-27709?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Out-of-bounds Read in M2team Nanazip

CVE-2026-27709

NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, NanaZip’s `.NET Single File Application` parser has an out-of-bounds read vulnerability in manifest parsing. A crafted…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H.

Affected products

M2team Nanazip — versions >= 5.0.1252.0, < 6.0.1638.0, >= 6.1, < 6.5.1638.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-27709?: CVE-2026-27709 is a medium-severity vulnerability in M2team Nanazip, classified under Out-of-bounds Read. CVSS score: 6.6/10. Published 2026-02-26.
How severe is CVE-2026-27709?: Medium severity. CVSS v3 base score is 6.6 out of 10.