CVE-2021-34066
CVSS v3
9.8
CRITICAL
EPSS Score
2.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in EdgeGallery/developer before v1.0. There is a "Deserialization of yaml file" vulnerability that can allow attackers to execute system command through uploading the malicious constructed YAML file.
Technical details
- Published
- 2021-08-30
Frequently asked questions
What is CVE-2021-34066?
An issue was discovered in EdgeGallery/developer before v1.0. There is a "Deserialization of yaml file" vulnerability that can allow attackers to execute system command through uploading the malicious constructed YAML file.
Is CVE-2021-34066 actively exploited?
Active exploitation of CVE-2021-34066 has not been confirmed. Its EPSS score was 2.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-34066?
CVE-2021-34066 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-34066 affecting your environment?
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