What is CVE-2021-21910?

CVE-2021-21910 is a high-severity vulnerability in Advantech R-Seenet, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2021-12-22.

How severe is CVE-2021-21910?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Advantech R-Seenet

CVE-2021-21910

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.

EPSS: 0.003 (23.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Advantech R-seenet — versions 2.4.15
Microsoft Windows
N/a Advantech — versions Advantech R-SeeNet Advantech R-SeeNet 2.4.15 (30.07.2021)

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21910?: CVE-2021-21910 is a high-severity vulnerability in Advantech R-Seenet, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2021-12-22.
How severe is CVE-2021-21910?: High severity. CVSS v3 base score is 7.8 out of 10.