CVE-2024-21315 | Microsoft Defender for Endpoint Protection Elevation of Privilege Vulnerability

Microsoft Defender for Endpoint Protection Elevation of Privilege Vulnerability

Published: 2024-02-13 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2024-21315 is rated Moderate Risk (48.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.27%). Mandatory action: 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-2024-21315

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 1.01% 0.27% -0.74%
2 2025-11-18 0.27% 1.01% +0.74%
3 2025-07-04 0.27%

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-21315

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:L/UI:N/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: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: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]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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: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: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]

Weakness enumeration for CVE-2024-21315

Affected software / configurations for CVE-2024-21315

Vendor Product Version Raw CPE
microsoft defender_for_endpoint < 10.0.25398.531 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.19045.3693 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.22621.2715 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 6.3.9600.21813 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.14393.6452 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 6.2.9200.24710 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.10240.20308 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.19043.3693 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.22000.2600 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 6.2.9200.24569 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.20348.2113 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*
microsoft defender_for_endpoint < 10.0.17763.5122 cpe:2.3:a:microsoft:defender_for_endpoint:*:*:*:*:*:windows:*:*

References for CVE-2024-21315

cvelogic Threat Intelligence