What’s Vulnerable › Vulnerabilities

CVE-2021-21911

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-22 · updated 2026-06-17
• Weakness: CWE-276

Description

A privilege escalation vulnerability exists in the Windows version of installation for Advantech R-SeeNet Advantech R-SeeNet 2.4.15 (30.07.2021). A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Advantech R-SeeNet: 2.4.15

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1360
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1360

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