What’s Vulnerable › Vulnerabilities

CVE-2021-28271

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-27 · updated 2026-06-17
• Weakness: CWE-276

Description

Soyal Technologies SOYAL 701Server 9.0.1 suffers from an elevation of privileges vulnerability which can be used by an authenticated user to change the executable file with a binary choice. The vulnerability is due to improper permissions with the 'F' flag (Full) for 'Everyone'and 'Authenticated Users' group.

Affected products

• Soyal 701Clientsql: from 10.0 before 10.2 — fixed in 10.2
• Soyal 701Server: through 9.0.2
• Soyal 701Serversql: from 10.0 before 10.2 — fixed in 10.2

How to fix

Upgrade to a fixed version: Soyal 701Clientsql 10.2; Soyal 701Serversql 10.2. Check the vendor advisory for mitigations.

References

• https://www.exploit-db.com/exploits/49678
• https://www.zeroscience.mk/en/vulnerabilities
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5633.php
• https://www.exploit-db.com/exploits/49678
• https://www.zeroscience.mk/en/vulnerabilities
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5633.php

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