CVE-2021-44255
Unrestricted Upload of File with Dangerous Type in motionEye
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-44255- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-44255- Updated
- 2026-11-02
EUVDEUVD-2022-1086 No score
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.
- Record
EUVD-2022-1086- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m2c7-42rf-c62f
Unrestricted Upload of File with Dangerous Type in motionEye
motionEye <= 0.42.1 and motioneEyeOS <= 20200606 allow a remote attacker to upload a configuration backup file containing a malicious python pickle file. This is possible when an installation is accessible over the Internet and uses no or poor authentication credentials.
The GitHub repositories for motionEye and motionEyeOS are no longer being actively maintained as of January 2022, so release of a patched version is unlikely. Keeping a motionEye or motionEyeOS installation off of the Internet and/or using strong credentials provide protection against this issue.
- Record
GHSA-m2c7-42rf-c62f- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-44255- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-m2c7-42rf-c62f
Unrestricted Upload of File with Dangerous Type in motionEye
motionEye <= 0.42.1 and motioneEyeOS <= 20200606 allow a remote attacker to upload a configuration backup file containing a malicious python pickle file. This is possible when an installation is accessible over the Internet and uses no or poor authentication credentials.
The GitHub repositories for motionEye and motionEyeOS are no longer being actively maintained as of January 2022, so release of a patched version is unlikely. Keeping a motionEye or motionEyeOS installation off of the Internet and/or using strong credentials provide protection against this issue.
- Record
GHSA-m2c7-42rf-c62f- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSVPYSEC-2026-681
Unrestricted Upload of File with Dangerous Type in motionEye
motionEye <= 0.42.1 and motioneEyeOS <= 20200606 allow a remote attacker to upload a configuration backup file containing a malicious python pickle file. This is possible when an installation is accessible over the Internet and uses no or poor authentication credentials.
The GitHub repositories for motionEye and motionEyeOS are no longer being actively maintained as of January 2022, so release of a patched version is unlikely. Keeping a motionEye or motionEyeOS installation off of the Internet and/or using strong credentials provide protection against this issue.
- Record
PYSEC-2026-681- CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
motioneyePyPI |
through 0.42.1 | None known |
motioneyePyPI |
through 0.42.1, plus listed versions 0.270.27.10.27.20.280.28.1 Show 45 moreShow less0.28.20.28.30.290.29.10.29rc10.29rc20.300.30rc10.30rc20.310.31.10.31.20.31.30.31.40.31.50.320.32.10.32.20.330.33.10.33.20.33.30.33.40.340.34.10.34rc10.350.35.10.35.20.35rc10.360.36.10.370.37.10.37rc10.380.38.10.390.39.10.39.20.39.30.400.40rc10.40rc20.40rc3 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | pizza-power/motioneye-authenticated-RCE | 2021-10-22 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-44255 is a high vulnerability (CVSS 7.2) in Motioneye Project Motioneye, published January 31, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.14%, the 87th percentile. No source names a fixed version.
References
Left out here: 5 versions. The JSON record has them.