CVE-2020-7255 | Privilege Escalation vulnerability  in ENS

Privilege escalation vulnerability in the administrative user interface in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to gain elevated privileges via ENS not checking user permissions when editing configuration in the ENS client interface. Administrators can lock the ENS client interface through ePO to prevent users being able to edit the configuration.

Published: 2020-04-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-7255 is rated Low Risk (24.4/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.08%). 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-2020-7255

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 2025-11-21 0.03% 0.08% +0.05%
2 2025-11-18 0.08% 0.03% -0.05%
3 2025-07-05 — 0.08% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-7255

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.9 3.1 LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L 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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 0.8 2.7 [email protected]
4.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L 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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.8 2.5 [email protected]
3.6 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:P 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:P)
Partial availability impact.
 3.9 4.9 [email protected]

Weakness enumeration for CVE-2020-7255

Affected software / configurations for CVE-2020-7255

Vendor Product Version Raw CPE
mcafee endpoint_security 10.5.0 cpe:2.3:a:mcafee:endpoint_security:10.5.0:*:*:*:*:windows:*:*
mcafee endpoint_security 10.5.1 cpe:2.3:a:mcafee:endpoint_security:10.5.1:*:*:*:*:windows:*:*
mcafee endpoint_security 10.5.2 cpe:2.3:a:mcafee:endpoint_security:10.5.2:*:*:*:*:windows:*:*
mcafee endpoint_security 10.5.3 cpe:2.3:a:mcafee:endpoint_security:10.5.3:*:*:*:*:windows:*:*
mcafee endpoint_security 10.5.4 cpe:2.3:a:mcafee:endpoint_security:10.5.4:*:*:*:*:windows:*:*
mcafee endpoint_security 10.5.5 cpe:2.3:a:mcafee:endpoint_security:10.5.5:*:*:*:*:windows:*:*
mcafee endpoint_security 10.6.0 cpe:2.3:a:mcafee:endpoint_security:10.6.0:*:*:*:*:windows:*:*

References for CVE-2020-7255

cvelogic Threat Intelligence