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CVE-2021-21787

🗓️ 07 Jul 2021 17:15:07Reported by GoogleType 
osv
 osv
🔗 osv.dev

CVE-2021-21787: Privilege escalation in IOBit SystemCare driver via IOCTL 0x9c40a0d8 that writes a byte to an I/O port.

Related
Refs
ReporterTitlePublishedViews
Family
CNNVD
IOBit Advanced SystemCare 安全漏洞
7 Jul 202100:00
cnnvd
CNVD
Advanced SystemCare Ultimate Elevation of Privilege Vulnerability (CNVD-2021-57452)
8 Jul 202100:00
cnvd
CVE
CVE-2021-21787
7 Jul 202116:39
cve
Cvelist
CVE-2021-21787
7 Jul 202116:39
cvelist
EUVD
EUVD-2021-8959
3 Oct 202520:07
euvd
NVD
CVE-2021-21787
7 Jul 202117:15
nvd
Prion
Privilege escalation
7 Jul 202117:15
prion
RedhatCVE
CVE-2021-21787
22 May 202521:31
redhatcve
Talos
IOBit Advanced SystemCare ultimate privileged I/O write vulnerabilities
7 Jul 202100:00
talos

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04 May 2026 08:34Current
7.5High risk
Vulners AI Score7.5
CVSS 3.18.8
EPSS0.00057
0