Insufficient Isolation
Source GCVE Database
Not known to be exploited.
Data as of 6 Nov 2026, 19:20 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Gen DigitalAvast Antivirus, Avast One, Avast Premium Security, Avast Ultimate | Affected
| Fixed in– |
| Gen DigitalAVG Antivirus Free, AVG Internet Security, AVG Ultimate | Affected
| Fixed in– |
| Gen DigitalNorton Antivirus Plus, Norton 360 Standard, Norton 360 Deluxe, Norton 360 Advanced | Affected
| Fixed in– |
Description
A vulnerability in the Avast sandbox file virtualization layer on Windows allows a local, low-privileged attacker operating inside the sandbox to write arbitrary files outside the sandbox containment. This occurs due to insufficient isolation and improper validation of write targets, enabling writes to bypass virtualization redirection and affect protected host file system locations. Exploitation can lead to overwriting executable files, system libraries, or startup configurations, resulting in code execution with host privileges upon subsequent system operations or reboot.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80302 (opens in a new tab)
- support.avast.com/en-us/article/Update-Antivirus (opens in a new tab)
- support.avg.com/SupportArticleView?l=en&urlname=Update-AVG-Antivirus (opens in a new tab)
- support.norton.com/sp/en/us/home/current/solutions/v20240108175512167 (opens in a new tab)
- gendigital.com/us/en/contact-us/security-advisories (opens in a new tab)