CVE-2023-21567 | Visual Studio Denial of Service Vulnerability

Visual Studio Denial of Service Vulnerability

Published: 2023-02-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-21567 is rated Low Risk (39.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.80%). 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-2023-21567

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 2026-06-15 1.47% 0.80% -0.67%
2 2026-02-23 1.64% 1.47% -0.17%
3 2026-02-21 — 1.64% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-21567

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.6 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/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: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:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.3 4.2 [email protected]

Weakness enumeration for CVE-2023-21567

Affected software / configurations for CVE-2023-21567

Vendor Product Version Raw CPE
microsoft visual_studio_2017 >= 15.0, < 15.9.52 cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
microsoft visual_studio_2019 >= 16.0, < 16.11.24 cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.0, < 17.0.19 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.2, < 17.2.13 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.4, < 17.4.5 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*

References for CVE-2023-21567

cvelogic Threat Intelligence