CVE-2026-45384 MEDIUM

CVE-2026-45384: bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update

Vendor Rikyoz
Product bit7z
Weakness CWE-59
Published June 10, 2026
Last update June 11, 2026
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

What the vulnerability does

01Description

bit7z is a cross-platform C++ static library that allows the compression/extraction of archive files. Prior to version 4.0.12, there is an arbitrary file overwrite vulnerability via symlink attack on predictable temp files during archive update. This issue has been patched in version 4.0.12.

Key dates

02Disclosure timeline

June 10, 2026 CVE published
June 11, 2026 Record updated