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CVE record · CVE-2026-82964

Avast sandbox privilege escalation via unpreserved DACLs on virtualized files in aswSnx.sys

CVSS 8.8 HighEPSS 0.0016 · 4th percentile

Published by the CVE Program (CNA: GEN) at 16 Sept 2026, 14:01 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Gen Digital Avast Free Antivirus, Avast One, Avast Premium Security, Avast Ultimate, Avast Business Security
  • affected before 26.8 custom
Other versions: affected
Gen Digital AVG Antivirus Free, AVG Internet Security, AVG Ultimate
  • affected before 26.8 custom
Other versions: affected
Gen Digital Norton Antivirus Plus, Norton 360 Standard, Norton 360 Deluxe, Norton 360 Advanced
  • affected before 26.8 custom
Other versions: affected
Identifiers
CVE-2026-82964
CNA
GEN
Weakness (CWE)
CWE-281 · CWE-653 · CWE-862
Tags
Published
16 Sept 2026
Updated
17 Sept 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CNA (GEN)
  • CISA KEV Not listed.
  • EPSS 0.0016, the 4th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.