CVE-2026-45384
bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 CWE-377 |
| Vendor | rikyoz |
| Product | bit7z |
| Published | Jun 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low
Affected Versions
rikyoz / bit7z
< 4.0.12