Security readout for executives and security teams
This is a local privilege escalation flaw in older Avast antivirus products. A user already on a Windows system could potentially abuse Avast's virtualization driver to gain higher privileges. The available bundle does not show active exploitation, but public exploit-oriented write-ups exist. Exposure is most likely on Windows endpoints still running the named Avast products below version 11.1.2253. Modern deployments may be unaffected if they have upgraded, replaced Avast, or no longer load aswSnx.sys. Treat this as a high-priority legacy endpoint hygiene issue, especially where older Avast versions remain on shared or user-accessible Windows systems. It is less urgent where asset inventory confirms no affected products or versions. Mitigation focus: Upgrade affected Avast products to 11.1.2253 or later.; Check current Avast guidance for any superseding remediation advice.; Remove unsupported legacy Avast installations from managed endpoints..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2015-8620 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.nettitude.co.uk/exploiting-a-kernel-paged-pool-buffer-overflow-in-avast-virtualization-driver/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.