Buffer overflow in Iobit Advanced Systemcare

CVE-2018-16711

IObit Advanced SystemCare, which includes Monitor_win10_x64.sys or Monitor_win7_x64.sys, 1.2.0.5 (and possibly earlier versions) allows a user to send an IOCTL (0x9C402088) with a buffer containing user defined content. The driver's subroutine will execute a wrmsr instruction with the user's buffer for input.

Vulnerability class: Buffer Overflow

EPSS: 0.020 (78.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-16711?
CVE-2018-16711 is a high-severity vulnerability in Iobit Advanced Systemcare, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2018-09-26.
How severe is CVE-2018-16711?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-16711 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.