CVE-2026-50646 | .NET Framework Remote Code Execution Vulnerability

Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.

Published: 2026-07-14 Last update: 2026-07-15 Assigner: [email protected] Source: [email protected]
NVD Status：Awaiting Analysis，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-50646 is rated Moderate Risk (56.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.58%). 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-2026-50646

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 2026-07-15 — 1.58% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-50646

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]

Weakness enumeration for CVE-2026-50646

OS Trackers for CVE-2026-50646

vendor priority summary link
ubuntu medium CVE-2026-50646 medium priority: Ubuntu including 5 source packages (dotnet10, dotnet6, dotnet7, dotnet8, dotnet9), 40 status rows across 8 suites (bionic, focal, jammy, noble, resolute, trusty, upstream, xenial): DNE 29, needs-triage 5, not-affected 5, ignored 1. https://ubuntu.com/security/CVE-2026-50646

Affected software / configurations for CVE-2026-50646

Vendor Product Version Raw CPE
microsoft .net >= 8.0.0, < 8.0.29 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 9.0.0, < 9.0.18 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft visual_studio_2026 >= 18.0, < 18.7.4 cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.12.0, < 17.12.22 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft visual_studio_2022 >= 17.14.0, < 17.14.36 cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
microsoft .net >= 4.8.0, < 4.8.4803.0 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 4.8.0, < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 4.7.0, < 2.0.50727.8983 & 3.0.30729.8978 & 4.7.4143.0 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 4.7.0, < 4.7.4143.0 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 4.8.1, < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
microsoft .net >= 3.5.0, < 2.0.50727.8983 & 3.0.30729.8978 cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*

References for CVE-2026-50646

cvelogic Threat Intelligence