CVE-2021-40396 is a high-severity privilege escalation vulnerability affecting Advantech DeviceOn/iService 1.1.7, allowing a local attacker with low privileges to replace a specially crafted file and escalate to NT SYSTEM authority. The vulnerability has a CVSS score of 8.8, indicating a high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for complete system compromise makes it a significant concern.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.1.7CPE matchmatch criteria | cpe:2.3:a:advantech:deviceon\/iservice:1.1.7:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.