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NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-19820 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 duri… https://www.cve.org/CVERecord?id=CVE-2026-19820
Post summary
Backblaze Client vulnerability lets local users create links to OS system files that render the machine non‑bootable; no PoC, exploit, active exploitation, or patch is mentioned in the text.