CVE-2026-45384

MEDIUM

bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/rikyoz/bit7z/releases/tag/v4.0.12

Scores

CVSS v3 6.1
EPSS 0.0013
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-377 CWE-59
Status published
Products (1)
rikyoz/bit7z < 4.0.12
Published Jun 10, 2026
Tracked Since Jun 11, 2026