CVE-2026-45384
bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update
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.
- Record
CVE-2026-45384- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-59, CWE-377
- Updated
- 2026-11-02
EUVDEUVD-2026-36115
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.
- Record
EUVD-2026-36115- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-45384- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-59, CWE-377
- Updated
- 2026-11-02
OSV
bit7z: Arbitrary File Overwrite via Symlink Attack on Predictable Temp File During Archive Update
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.
- Record
CVE-2026-45384- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-377, CWE-59
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-45384 is a medium vulnerability (CVSS 6.1) in Rikyoz Bit7z, published June 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. No source names a fixed version.