PT-2026-22045 · Nanazip · Nanazip

Ho-9 · Published 2026-02-25 · Updated 2026-02-26 · CVE-2026-27711

Positive Technologies (AI Summary)

CVSS v3.1

6.6

Medium

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

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, an open source file archive, contains a memory corruption issue in its UFS parser. A specially crafted .ufs, .ufs2, or .img file can cause out-of-bounds memory access when the archive is opened or listed. This flaw is reachable through normal user file-open operations and may lead to process crashes, hangs, and potentially exploitable heap corruption.

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

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-27711

GHSA-RJWV-4W7X-HC9C

Affected Products

Nanazip

References · 6

• 🔥 https://github.com/M2Team/NanaZip/security/advisories/GHSA-rjwv-4w7x-hc9c · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27711.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-27711 · Security Note
• https://osv.dev/vulnerability/CVE-2026-27711 · Vendor Advisory
• https://twitter.com/CVEnew/status/2027004255861637149 · Twitter Post
• https://t.me/CVEtracker/45791 · Telegram Post