What’s Vulnerable › Vulnerabilities

CVE-2017-16673

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-11-09 · updated 2026-06-17
• Weakness: CWE-200

Description

Datto Backup Agent 1.0.6.0 and earlier does not authenticate incoming connections. This allows an attacker to impersonate a Datto Backup Appliance to "pair" with the agent and issue requests to this agent, if the attacker can reach the agent on TCP port 25566 or 25568, and send unspecified "specific information" by which the agent identifies a network device that is "appearing to be a valid Datto."

Affected products

• Datto Backup Agent: through 1.0.6.0

References

• https://www.datto.com/partner-security-update-nov2017
• https://www.datto.com/partner-security-update-nov2017

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