CVE-2026-26282

MEDIUM
2026-02-19 [email protected]
6.6
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
PoC Detected
Feb 20, 2026 - 19:42 vuln.today
Public exploit code
CVE Published
Feb 19, 2026 - 21:18 nvd
MEDIUM 6.6

Tags

Dotnet Denial Of Service Nanazip

Description

NanaZip is an open source file archive Starting in version 5.0.1252.0 and prior to version 6.0.1630.0, NanaZip has an out-of-bounds heap read in `.NET Single File` bundle header parser due to missing bounds check. Opening a crafted file with NanaZip causes a crash or leaks heap data to the user. Version 6.0.1630.0 patches the issue.

Analysis

NanaZip versions 5.0.1252.0 through 6.0.1629.0 contain an out-of-bounds heap read in the .NET Single File bundle parser that can crash the application or expose sensitive heap memory when processing malicious archive files. A local attacker with user privileges can exploit this vulnerability by crafting a specially formatted file, and public exploit code is currently available. …

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Remediation

Within 30 days: Identify affected systems running version 5.0.1252.0 and and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

53
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +33
POC: +20

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CVE-2026-26282 vulnerability details – vuln.today
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