CVE-2026-33116
.NET, .NET Framework, and Visual Studio Denial of Service Vulnerability
Description
Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.
INFO
Published Date :
April 14, 2026, 6:17 p.m.
Last Modified :
June 30, 2026, 3:18 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-33116
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | f38d906d-7342-40ea-92c1-6c4a2c6478c8 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
Public PoC/Exploit Available at Github
CVE-2026-33116 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33116.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33116 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33116
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33116 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33116 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CRB (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}] Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-776 Added Reference https://access.redhat.com/errata/RHSA-2026:13280 Added Reference https://access.redhat.com/errata/RHSA-2026:13281 Added Reference https://access.redhat.com/errata/RHSA-2026:13282 Added Reference https://access.redhat.com/errata/RHSA-2026:13283 Added Reference https://access.redhat.com/errata/RHSA-2026:13693 Added Reference https://access.redhat.com/errata/RHSA-2026:8467 Added Reference https://access.redhat.com/errata/RHSA-2026:8468 Added Reference https://access.redhat.com/errata/RHSA-2026:8469 Added Reference https://access.redhat.com/errata/RHSA-2026:8470 Added Reference https://access.redhat.com/errata/RHSA-2026:8471 Added Reference https://access.redhat.com/errata/RHSA-2026:8472 Added Reference https://access.redhat.com/errata/RHSA-2026:8473 Added Reference https://access.redhat.com/errata/RHSA-2026:8474 Added Reference https://access.redhat.com/errata/RHSA-2026:8475 Added Reference https://access.redhat.com/errata/RHSA-2026:9077 Added Reference https://access.redhat.com/errata/RHSA-2026:9080 Added Reference https://access.redhat.com/errata/RHSA-2026:9205 Added Reference https://access.redhat.com/security/cve/CVE-2026-33116 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2457741 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33116.json -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Microsoft', 'product': '.NET 10.0', 'versions': [{'status': 'affected', 'version': '10.0.0', 'lessThan': '10.0.6', 'versionType': 'custom'}]}, {'vendor': 'Microsoft', 'product': '.NET 8.0', 'versions': [{'status': 'affected', 'version': '8.0', 'lessThan': '8.0.26', 'versionType': 'custom'}]}, {'vendor': 'Microsoft', 'product': '.NET 8.0', 'versions': [{'status': 'affected', 'version': '8.0.0', 'lessThan': '8.0.26', 'versionType': 'custom'}]}, {'vendor': 'Microsoft', 'product': '.NET 9.0', 'versions': [{'status': 'affected', 'version': '9.0.0', 'lessThan': '9.0.15', 'versionType': 'custom'}]}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5', 'versions': [{'status': 'affected', 'version': '3.5.0', 'lessThan': '2.0.50727.8982 & 3.0.30729.8976', 'versionType': 'custom'}], 'platforms': ['Windows Server 2012', 'Windows Server 2012 (Server Core installation)', 'Windows Server 2012 R2', 'Windows Server 2012 R2 (Server Core installation)']}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.7.2', 'versions': [{'status': 'affected', 'version': '4.7.0', 'lessThan': '2.0.50727.9068 & 3.0.30729.9065 & 4.7.4141.0', 'versionType': 'custom'}], 'platforms': ['Windows 10 Version 1809 for 32-bit Systems', 'Windows 10 Version 1809 for ARM64-based Systems', 'Windows 10 Version 1809 for x64-based Systems']}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8', 'versions': [{'status': 'affected', 'version': '4.8.0', 'lessThan': '2.0.50727.9068 & 3.0.30729.9065 & 4.8.4801.0', 'versionType': 'custom'}], 'platforms': ['Windows 10 Version 1809 for 32-bit Systems', 'Windows 10 Version 1809 for ARM64-based Systems', 'Windows 10 Version 1809 for x64-based Systems', 'Windows 10 Version 21H2 for 32-bit Systems', 'Windows 10 Version 21H2 for ARM64-based Systems', 'Windows 10 Version 21H2 for x64-based Systems', 'Windows 10 Version 22H2 for 32-bit Systems', 'Windows 10 Version 22H2 for ARM64-based Systems', 'Windows 10 Version 22H2 for x64-based Systems', 'Windows Server 2022', 'Windows Server 2022 (Server Core installation)']}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 3.5 AND 4.8.1', 'versions': [{'status': 'affected', 'version': '4.8.1', 'lessThan': '2.0.50727.9181 & 3.0.30729.9165 & 4.8.9332.0', 'versionType': 'custom'}], 'platforms': ['Windows 10 Version 21H2 for 32-bit Systems', 'Windows 10 Version 21H2 for ARM64-based Systems', 'Windows 10 Version 21H2 for x64-based Systems', 'Windows 10 Version 22H2 for 32-bit Systems', 'Windows 10 Version 22H2 for ARM64-based Systems', 'Windows 10 Version 22H2 for x64-based Systems', 'Windows 11 Version 22H2 for ARM64-based Systems', 'Windows 11 Version 22H2 for x64-based Systems', 'Windows 11 Version 23H2 for ARM64-based Systems', 'Windows 11 Version 23H2 for x64-based Systems', 'Windows 11 Version 24H2 for ARM64-based Systems', 'Windows 11 Version 24H2 for x64-based Systems', 'Windows 11 Version 25H2 for ARM64-based Systems', 'Windows 11 Version 25H2 for x64-based Systems', 'Windows 11 Version 26H1 for ARM64-based Systems', 'Windows 11 Version 26H1 for x64-based Systems', 'Windows Server 2022', 'Windows Server 2022 (Server Core installation)', 'Windows Server 2022, 23H2 Edition (Server Core installation)', 'Windows Server 2025', 'Windows Server 2025 (Server Core installation)']}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2', 'versions': [{'status': 'affected', 'version': '4.7.0', 'lessThan': '4.8.4801.0', 'versionType': 'custom'}], 'platforms': ['Windows Server 2012', 'Windows Server 2012 (Server Core installation)', 'Windows Server 2012 R2', 'Windows Server 2012 R2 (Server Core installation)']}, {'vendor': 'Microsoft', 'product': 'Microsoft .NET Framework 4.8', 'versions': [{'status': 'affected', 'version': '4.8.0', 'lessThan': '4.8.4801.0', 'versionType': 'custom'}], 'platforms': ['Windows 10 Version 1607 for 32-bit Systems', 'Windows 10 Version 1607 for x64-based Systems', 'Windows Server 2012', 'Windows Server 2012 (Server Core installation)', 'Windows Server 2012 R2', 'Windows Server 2012 R2 (Server Core installation)']}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-33116', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-14T19:48:26.946135Z'} -
Initial Analysis by [email protected]
May. 06, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (excluding) 10.0.6 OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.26 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.0.15 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_server_2022_23h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_25h2:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25h2:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h1:-:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26h1:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2025:-:*:*:*:*:*:x64:* Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:* Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33116 Types: Vendor Advisory -
New CVE Received by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added Description Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-20 Added CWE CWE-400 Added CWE CWE-835 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33116