CVE-2026-19820
Backblaze Client for Windows Improper Link Resolution Vulnerability
Description
A vulnerability in the Backblaze Client allows a local user to make the system not bootable by creating a link from Backblaze's folder to Windows OS system files during a backup. Successful exploitation requires an administrator-level system change that results in the absence of specific Windows OS security controls. This vulnerability is due to improper link resolution.
No summary for this CVE yet.
Weaknesses
Affected Products
Backblaze
commercial·USaka b2 command line tool, b2_command_line_tool
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Collection
Discovery
References
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