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ZDI-26-627: Backblaze Personal Computer Backup bztransmit Link Following Denial-of-Service Vulnerability
ZDI published ZDI-26-627 for a local denial-of-service flaw (CVE-2026-19820, CVSS 6.1) in Backblaze Personal Computer Backup's bztransmit component.
The Zero Day Initiative published advisory ZDI-26-627 describing a link-following denial-of-service vulnerability in the bztransmit component of Backblaze Personal Computer Backup. Local attackers must first execute low-privileged code on the target system to trigger the condition. The issue carries a CVSS score of 6.1 and is tracked as CVE-2026-19820.
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Week in review: Windows kernel flaw patched, suspected Fortinet FortiWeb zero-day exploited
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Week in review: High-severity LPE vulnerability in the Linux kernel, cPanel 0-day exploited for months
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Week in review: Sudo local privilege escalation flaws fixed, Google patches actively exploited Chrome
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Week in review: Microsoft patches 5 actively exploited 0-days, recently fixed Chrome vulnerability exploited
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