CVE-2025-21405 | Visual Studio Elevation of Privilege Vulnerability

Visual Studio Elevation of Privilege Vulnerability

Published: 2025-01-14 Last update: 2025-01-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-21405 is rated Moderate Risk (51.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.43%). 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-2025-21405

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 2026-06-05 0.47% 0.43% -0.04%
2 2026-05-29 0.40% 0.47% +0.08%
3 2026-02-22 0.40%

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21405

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.3 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/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: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: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.
1.3 5.9 [email protected]

Weakness enumeration for CVE-2025-21405

Affected software / configurations for CVE-2025-21405

Vendor Product Version Raw CPE
microsoft visual_studio_2022 >= 17.12.0, < 17.12.4 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*

References for CVE-2025-21405

cvelogic Threat Intelligence