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TI-2021-16655 Aliases CVE-2021-39274GHSA-77g9-3552-f5x8

In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set…

Priority MEDIUM 48CWE-276Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.03123 87th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:xerosecurity:sn1per:9.0:*:*:*:*:*:*:*9.0VulnerableXerosecurity
  • cpe:2.3:a:xerosecurity:sn1per:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Xerosecurity

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39274
  2. 2026-10-03 Alias added: GHSA-77g9-3552-f5x8

References

  • TI-2021-16654 In XeroSecurity Sn1per 9.0 (free version), insecure permissions (0777) are set upon… CVSS 3.1HIGH 8.8

Sources