CVE-2019-18631

The Windows component of Centrify Authentication and Privilege Elevation Services 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.5.0, 3.5.1 (18.8), 3.5.2 (18.11), and 3.6.0 (19.6) does not properly handle an unspecified exception during use of partially trusted assemblies to serialize input data, which allows attackers to execute arbitrary code inside the Centrify process via (1) a crafted application that makes a pipe connection to the process and sends malicious serialized data or (2) a crafted Microsoft Management Console snap-in control file.

Published: 2019-11-05 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-18631 is rated Moderate Risk (56.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.80%). Review affected assets and schedule remediation.

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-2019-18631

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 0.69% 0.80% +0.11%
2 2025-03-29 0.80% 0.69% -0.11%
3 2025-03-17 — 0.80% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-18631

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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.
 1.8 5.9 [email protected]
5.1 2.0 MEDIUM
AV:N/AC:H/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:H)
Exploitation requires uncommon or highly specific conditions.
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.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2019-18631

Affected software / configurations for CVE-2019-18631

Vendor Product Version Raw CPE
centrify authentication_service 3.4.0 cpe:2.3:a:centrify:authentication_service:3.4.0:*:*:*:*:windows:*:*
centrify authentication_service 3.4.1 cpe:2.3:a:centrify:authentication_service:3.4.1:*:*:*:*:windows:*:*
centrify authentication_service 3.4.2 cpe:2.3:a:centrify:authentication_service:3.4.2:*:*:*:*:windows:*:*
centrify authentication_service 3.4.3 cpe:2.3:a:centrify:authentication_service:3.4.3:*:*:*:*:windows:*:*
centrify authentication_service 3.5.0 cpe:2.3:a:centrify:authentication_service:3.5.0:*:*:*:*:windows:*:*
centrify authentication_service 3.5.1 cpe:2.3:a:centrify:authentication_service:3.5.1:*:*:*:*:windows:*:*
centrify authentication_service 3.5.2 cpe:2.3:a:centrify:authentication_service:3.5.2:*:*:*:*:windows:*:*
centrify authentication_service 3.6.0 cpe:2.3:a:centrify:authentication_service:3.6.0:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.4.0 cpe:2.3:a:centrify:privilege_elevation_service:3.4.0:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.4.1 cpe:2.3:a:centrify:privilege_elevation_service:3.4.1:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.4.2 cpe:2.3:a:centrify:privilege_elevation_service:3.4.2:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.4.3 cpe:2.3:a:centrify:privilege_elevation_service:3.4.3:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.5.0 cpe:2.3:a:centrify:privilege_elevation_service:3.5.0:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.5.1 cpe:2.3:a:centrify:privilege_elevation_service:3.5.1:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.5.2 cpe:2.3:a:centrify:privilege_elevation_service:3.5.2:*:*:*:*:windows:*:*
centrify privilege_elevation_service 3.6.0 cpe:2.3:a:centrify:privilege_elevation_service:3.6.0:*:*:*:*:windows:*:*

References for CVE-2019-18631

cvelogic Threat Intelligence