CVE-2021-21789 is a high-severity privilege escalation vulnerability affecting IOBit Advanced SystemCare Ultimate 14.2.0.220. It arises from improper handling of privileged I/O write requests within the product's driver, specifically during IOCTL 0x9c40a0e0. A local attacker can exploit this by sending a malicious IRP to gain elevated privileges, potentially leading to complete system compromise (CVSS 8.8). There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
14.2.0.220CPE matchmatch criteria | cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:*:*:*:*:*:*:* |
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.