Vulnerability in Avast Business Security
CVE-2016-4025
Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Avast Business Security — versions 11.1.2241, 11.1.2245, 11.1.2253
- Avast Email Server Security — versions 8.0.1606
- Avast Endpoint Protection — versions 8.0.1606
- Avast Endpoint Protection Plus — versions 8.0.1606, 8.0.1609
- Avast Endpoint Protection Suite — versions 8.0.1606
- Avast Endpoint Protection Suite Plus — versions 8.0.1606
- Avast File Server Security — versions 8.0.1606
- Avast Free Antivirus — versions 11.1.2241, 11.1.2245, 11.1.2253
- Avast Internet Security — versions 11.1.2241, 11.1.2245, 11.1.2253
- Avast Premier — versions 11.1.2241, 11.1.2245, 11.1.2253
Weakness classification (CWE)
Public proof-of-concept exploits
References
- labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025/ (Technical Description, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-4025?
- CVE-2016-4025 is a medium-severity vulnerability in Avast Business Security, classified under CWE-254. CVSS score: 5.5/10. Published 2016-11-03.
- How severe is CVE-2016-4025?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2016-4025 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.