CVE-2026-19820

Timeline

Detection, updates, and resolution for this record.

1. Sep 9, 2026 · Catalog

   Detected

   This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

Sources

• CVE.orgCVE-2026-19820

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2026-19820

  30-day exploitation probability 0.3%

  first.org
• Zero Day InitiativeZDI-26-624

  This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

  zerodayinitiative.com
• Zero Day InitiativeZDI-26-625

  This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

  zerodayinitiative.com
• Zero Day InitiativeZDI-26-626

  This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

  zerodayinitiative.com
• Zero Day InitiativeZDI-26-627

  This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

  zerodayinitiative.com
• Zero Day InitiativeZDI-26-628

  This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Backblaze Personal Computer Backup. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.1. The following CVEs are assigned: CVE-2026-19820.

  zerodayinitiative.com