Dashboard / CVE-2026-42446

CVE-2026-42446

HIGH
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-05-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: None
A: High

Description

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a stack-based out-of-bounds read exists in the ZealFS filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted ZealFS v1 filesystem image. An attacker-controlled BitmapSize field in the file header drives an unbounded loop that reads past the end of a stack-allocated ZEALFS_V1_HEADER structure. This vulnerability is fixed in 6.0.1698.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
m2team nanazip 5.0.1252.0 – 6.0.1698.0

References & Advisories (1)

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001180
Percentile 1.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00118
2026-10-28
0.00118

Intelligence Sources

nvd ref →

External Links