What’s Vulnerable › Vulnerabilities

CVE-2021-39273

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-19 · updated 2026-06-17
• Weakness: CWE-276

Description

In XeroSecurity Sn1per 9.0 (free version), insecure permissions (0777) are set upon application execution, allowing an unprivileged user to modify the application, modules, and configuration files. This leads to arbitrary code execution with root privileges.

Affected products

• Xerosecurity Sn1Per: 9.0

References

• https://github.com/1N3/Sn1per/issues/358
• https://github.com/1N3/Sn1per/releases
• https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274
• https://github.com/1N3/Sn1per/issues/358
• https://github.com/1N3/Sn1per/releases
• https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274

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