What’s Vulnerable › Vulnerabilities

CVE-2021-44255

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-31 · updated 2026-06-17
• Weakness: CWE-306

Description

Authenticated remote code execution in MotionEye <= 0.42.1 and MotioneEyeOS <= 20200606 allows a remote attacker to upload a configuration backup file containing a malicious python pickle file which will execute arbitrary code on the server.

Affected products

• Motioneye Project Motioneye: before 0.42.1 — fixed in 0.42.1
• Motioneyeos Project Motioneyeos: before 20200606 — fixed in 20200606

How to fix

Upgrade to a fixed version: Motioneye Project Motioneye 0.42.1; Motioneyeos Project Motioneyeos 20200606. Check the vendor advisory for mitigations.

References

• https://github.com/ccrisan/motioneyeos/issues/2843
• https://www.pizzapower.me/2021/10/09/self-hosted-security-part-1-motioneye/
• https://github.com/ccrisan/motioneyeos/issues/2843
• https://www.pizzapower.me/2021/10/09/self-hosted-security-part-1-motioneye/

Get alerted when CVE-2021-44255 or the next vulnerability affects your stack