Out-of-bounds Read in Webroot Secure Anywhere

CVE-2021-40424

An out-of-bounds read vulnerability exists in the IOCTL GetProcessCommand and B_03 of Webroot Secure Anywhere 21.4. A specially-crafted executable can lead to denial of service. An attacker can issue an ioctl to trigger this vulnerability. An out-of-bounds read vulnerability exists in the IOCTL GetProcessCommand and B_03 of Webroot Secure Anywhere 21.4. The GetProcessCommandLine IOCTL request could cause an out-of-bounds read in the device driver WRCore_x64. An attacker can issue an ioctl to trigger this vulnerability.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (25.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-40424?
CVE-2021-40424 is a medium-severity vulnerability in Webroot Secure Anywhere, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2022-04-14.
How severe is CVE-2021-40424?
Medium severity. CVSS v3 base score is 6.5 out of 10.