CVE-2019-16897

Exp

In K7 Antivirus Premium 16.0.xxx through 16.0.0120; K7 Total Security 16.0.xxx through 16.0.0120; and K7 Ultimate Security 16.0.xxx through 16.0.0120, the module K7TSHlpr.dll improperly validates the administrative privileges of the user, allowing arbitrary registry writes in the K7AVOptn.dll module to facilitate escalation of privileges via inter-process communication with a service process.

Published: 2019-10-28 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-16897 is rated High Exploit Risk (73.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.36%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2019-16897

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-16897

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 0.30% 0.36% +0.06%
2 2025-03-29 0.36% 0.30% -0.06%
3 2025-03-17 — 0.36% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-16897

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2019-16897

Affected software / configurations for CVE-2019-16897

Vendor Product Version Raw CPE
k7computing k7_antivirus_premium >= 16.0.000, <= 16.0.0120 cpe:2.3:a:k7computing:k7_antivirus_premium:*:*:*:*:*:*:*:*
k7computing k7_total_security >= 16.0.000, <= 16.0.0120 cpe:2.3:a:k7computing:k7_total_security:*:*:*:*:*:*:*:*
k7computing k7_ultimate_security >= 16.0.000, <= 16.0.0120 cpe:2.3:a:k7computing:k7_ultimate_security:*:*:*:*:*:*:*:*

References for CVE-2019-16897

cvelogic Threat Intelligence