CVE-2021-39274
CVSS v3
9.8
CRITICAL
EPSS Score
3.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.
Technical details
- Published
- 2021-08-19
Frequently asked questions
What is CVE-2021-39274?
In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.
Is CVE-2021-39274 actively exploited?
Active exploitation of CVE-2021-39274 has not been confirmed. Its EPSS score was 3.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-39274?
CVE-2021-39274 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-39274 affecting your environment?
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