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: 2016-11-03 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-4025 is rated Low Risk (33.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.39%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-4025

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.39% +0.33%
2 2025-03-17 0.04% 0.06% +0.02%
3 2023-03-07 0.04%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-4025

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
1.8 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
3.9 2.9 [email protected]

Weakness enumeration for CVE-2016-4025

Affected software / configurations for CVE-2016-4025

Vendor Product Version Raw CPE
avast business_security 11.1.2241 cpe:2.3:a:avast:business_security:11.1.2241:*:*:*:*:*:*:*
avast business_security 11.1.2245 cpe:2.3:a:avast:business_security:11.1.2245:*:*:*:*:*:*:*
avast business_security 11.1.2253 cpe:2.3:a:avast:business_security:11.1.2253:*:*:*:*:*:*:*
avast business_security 11.1.2260 cpe:2.3:a:avast:business_security:11.1.2260:*:*:*:*:*:*:*
avast business_security 11.1.2261 cpe:2.3:a:avast:business_security:11.1.2261:*:*:*:*:*:*:*
avast business_security 11.1.2262 cpe:2.3:a:avast:business_security:11.1.2262:*:*:*:*:*:*:*
avast free_antivirus 11.1.2241 cpe:2.3:a:avast:free_antivirus:11.1.2241:*:*:*:*:*:*:*
avast free_antivirus 11.1.2245 cpe:2.3:a:avast:free_antivirus:11.1.2245:*:*:*:*:*:*:*
avast free_antivirus 11.1.2253 cpe:2.3:a:avast:free_antivirus:11.1.2253:*:*:*:*:*:*:*
avast free_antivirus 11.1.2260 cpe:2.3:a:avast:free_antivirus:11.1.2260:*:*:*:*:*:*:*
avast free_antivirus 11.1.2261 cpe:2.3:a:avast:free_antivirus:11.1.2261:*:*:*:*:*:*:*
avast free_antivirus 11.1.2262 cpe:2.3:a:avast:free_antivirus:11.1.2262:*:*:*:*:*:*:*
avast internet_security 11.1.2241 cpe:2.3:a:avast:internet_security:11.1.2241:*:*:*:*:*:*:*
avast internet_security 11.1.2245 cpe:2.3:a:avast:internet_security:11.1.2245:*:*:*:*:*:*:*
avast internet_security 11.1.2253 cpe:2.3:a:avast:internet_security:11.1.2253:*:*:*:*:*:*:*
avast internet_security 11.1.2260 cpe:2.3:a:avast:internet_security:11.1.2260:*:*:*:*:*:*:*
avast internet_security 11.1.2261 cpe:2.3:a:avast:internet_security:11.1.2261:*:*:*:*:*:*:*
avast internet_security 11.1.2262 cpe:2.3:a:avast:internet_security:11.1.2262:*:*:*:*:*:*:*
avast premier 11.1.2241 cpe:2.3:a:avast:premier:11.1.2241:*:*:*:*:*:*:*
avast premier 11.1.2245 cpe:2.3:a:avast:premier:11.1.2245:*:*:*:*:*:*:*
avast premier 11.1.2253 cpe:2.3:a:avast:premier:11.1.2253:*:*:*:*:*:*:*
avast premier 11.1.2260 cpe:2.3:a:avast:premier:11.1.2260:*:*:*:*:*:*:*
avast premier 11.1.2261 cpe:2.3:a:avast:premier:11.1.2261:*:*:*:*:*:*:*
avast premier 11.1.2262 cpe:2.3:a:avast:premier:11.1.2262:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2241 cpe:2.3:a:avast:pro_antivirus:11.1.2241:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2245 cpe:2.3:a:avast:pro_antivirus:11.1.2245:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2253 cpe:2.3:a:avast:pro_antivirus:11.1.2253:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2260 cpe:2.3:a:avast:pro_antivirus:11.1.2260:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2261 cpe:2.3:a:avast:pro_antivirus:11.1.2261:*:*:*:*:*:*:*
avast pro_antivirus 11.1.2262 cpe:2.3:a:avast:pro_antivirus:11.1.2262:*:*:*:*:*:*:*
avast email_server_security <= 8.0.1609 cpe:2.3:a:avast:email_server_security:*:*:*:*:*:*:*:*
avast email_server_security 8.0.1606 cpe:2.3:a:avast:email_server_security:8.0.1606:*:*:*:*:*:*:*
avast endpoint_protection <= 8.0.1609 cpe:2.3:a:avast:endpoint_protection:*:*:*:*:*:*:*:*
avast endpoint_protection 8.0.1606 cpe:2.3:a:avast:endpoint_protection:8.0.1606:*:*:*:*:*:*:*
avast endpoint_protection_plus 8.0.1606 cpe:2.3:a:avast:endpoint_protection_plus:8.0.1606:*:*:*:*:*:*:*
avast endpoint_protection_plus 8.0.1609 cpe:2.3:a:avast:endpoint_protection_plus:8.0.1609:*:*:*:*:*:*:*
avast endpoint_protection_suite <= 8.0.1609 cpe:2.3:a:avast:endpoint_protection_suite:*:*:*:*:*:*:*:*
avast endpoint_protection_suite 8.0.1606 cpe:2.3:a:avast:endpoint_protection_suite:8.0.1606:*:*:*:*:*:*:*
avast endpoint_protection_suite_plus <= 8.0.1609 cpe:2.3:a:avast:endpoint_protection_suite_plus:*:*:*:*:*:*:*:*
avast endpoint_protection_suite_plus 8.0.1606 cpe:2.3:a:avast:endpoint_protection_suite_plus:8.0.1606:*:*:*:*:*:*:*
avast file_server_security <= 8.0.1609 cpe:2.3:a:avast:file_server_security:*:*:*:*:*:*:*:*
avast file_server_security 8.0.1606 cpe:2.3:a:avast:file_server_security:8.0.1606:*:*:*:*:*:*:*

References for CVE-2016-4025

cvelogic Threat Intelligence