PT-2026-22044 · Nanazip · Nanazip

Ho-9 · CVE-2026-27710 · Published 2026-02-25 · Updated 2026-02-26

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions NanaZip versions 5.0.1252.0 through 6.0.1637.0 NanaZip versions 6.5.1637.0

Description NanaZip contains a flaw in its .NET Single File Application parser that can lead to a denial-of-service condition. A specially crafted archive can cause an integer underflow during header-size calculation, resulting in an attempt to allocate an unbounded amount of memory when the archive is opened.

Recommendations Update to NanaZip version 6.0.1638.0 or later. Update to NanaZip version 6.5.1638.0 or later.

Exploit

Fix

DoS

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2026-27710

GHSA-89QW-8P49-32WF

Affected Products

Nanazip

References · 6

• 🔥 https://github.com/M2Team/NanaZip/security/advisories/GHSA-89qw-8p49-32wf · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27710.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-27710 · Security Note
• https://osv.dev/vulnerability/CVE-2026-27710 · Vendor Advisory
• https://twitter.com/CVEnew/status/2027004256943776059 · Twitter Post
• https://t.me/CVEtracker/45790 · Telegram Post