What is CVE-2021-45335?

CVE-2021-45335 is a high-severity vulnerability in Avast Antivirus, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2021-12-27.

How severe is CVE-2021-45335?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Avast Antivirus

CVE-2021-45335

Sandbox component in Avast Antivirus prior to 20.4 has an insecure permission which could be abused by local user to control the outcome of scans, and therefore evade detection or delete arbitrary system files.

EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Avast Antivirus
N/a — versions n/a

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-45335?: CVE-2021-45335 is a high-severity vulnerability in Avast Antivirus, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2021-12-27.
How severe is CVE-2021-45335?: High severity. CVSS v3 base score is 8.8 out of 10.