CVE-2017-16556

In K7 Antivirus Premium before 15.1.0.53, user-controlled input can be used to allow local users to write to arbitrary memory locations.

Published: 2018-01-16 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-16556 is rated Low Risk (26.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). 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-2017-16556

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 2025-03-30 0.07% 0.05% -0.02%
2 2025-03-29 0.04% 0.07% +0.03%
3 2023-03-07 — 0.04% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-16556

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-2017-16556

Affected software / configurations for CVE-2017-16556

Vendor Product Version Raw CPE
k7computing antivirus < 15.1.0.53 cpe:2.3:a:k7computing:antivirus:*:*:*:*:premium:*:*:*
k7computing antivirus < 15.1.0308 cpe:2.3:a:k7computing:antivirus:*:*:*:*:plus:*:*:*
k7computing endpoint < 14.2.0137 cpe:2.3:a:k7computing:endpoint:*:*:*:*:*:*:*:*
k7computing internet_security < 15.1.0297 cpe:2.3:a:k7computing:internet_security:*:*:*:*:*:*:*:*
k7computing total_security < 15.1.0324 cpe:2.3:a:k7computing:total_security:*:*:*:*:*:*:*:*
k7computing total_security < 16.0.0131 cpe:2.3:a:k7computing:total_security:*:*:*:*:plus:*:*:*
k7computing ultimate_security < 15.1.0324 cpe:2.3:a:k7computing:ultimate_security:*:*:*:*:*:*:*:*

References for CVE-2017-16556

cvelogic Threat Intelligence