CVE-2021-39274

9.8 criticalEPSS 3.1%

Critical (9.8) in xerosecurity sn1per. EPSS 3.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
CWE: CWE-276
Published: 2021-08-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

xerosecurity:sn1per

References

https://github.com/1N3/Sn1per/issues/357
https://github.com/1N3/Sn1per/releases
https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274
https://github.com/1N3/Sn1per/issues/357
https://github.com/1N3/Sn1per/releases

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