Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-50525: .NET Denial of Service Vulnerability

Not in the CISA KEV catalog. High advisory severity (CVSS 7.5, MS Server).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2026-50525 key facts

CISA KEV: Not listed (catalog checked Nov 6, 2026)
Highest advisory severity: High
CVSS base score: 7.5 (MS Server), 7.5 (Red Hat)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (Red Hat)
Weakness: CWE-770
Fixed releases: MS Server: KB5104034 (build 10.0.10), KB5104032 (build 8.0.29), KB5104033 (build 9.0.18), KB5101014 (build 2.0.50727.9182 & 3.0.30729.9168), KB5101002 (build 4.8.9340.0), KB5101007 (build 4.8.4803.0) and 2 more in the advisory
Red Hat: dotnet8.0-0:8.0.129-1.el10_2, dotnet9.0-0:9.0.119-1.el10_2, dotnet10.0-0:10.0.110-1.el10_2, dotnet8.0-0:8.0.130-1.el10_0, dotnet9.0-0:9.0.120-1.el10_0, dotnet9.0-0:9.0.119-1.el8_10 and 28 more in the advisory
Vendor advisories: 2 from MS Server, Red Hat
VulniPulse record: Published Jul 16, 2026 · Updated Jul 31, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-50525; bulletin-wide values are not repeated here.

Is CVE-2026-50525 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-50525 is not in the CISA KEV catalog (checked Nov 6, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-50525?

Upgrade to a fixed release named by the vendor:

MS Server: KB5104034 (build 10.0.10), KB5104032 (build 8.0.29), KB5104033 (build 9.0.18), KB5101014 (build 2.0.50727.9182 & 3.0.30729.9168), KB5101002 (build 4.8.9340.0), KB5101007 (build 4.8.4803.0)
Red Hat: dotnet8.0-0:8.0.129-1.el10_2, dotnet9.0-0:9.0.119-1.el10_2, dotnet10.0-0:10.0.110-1.el10_2, dotnet8.0-0:8.0.130-1.el10_0, dotnet9.0-0:9.0.120-1.el10_0, dotnet9.0-0:9.0.119-1.el8_10

Install the applicable security update for your platform: KB5104034, KB5104032, KB5104033, KB5101014, KB5101002, KB5101007 (see the Microsoft Update Catalog). (MS Server)

Get an email when Microsoft publishes the next one.

See Microsoft's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).

Alert me about Microsoft

Vendor advisory comparison

MS Server

1 advisory

Advisory severityHigh7.5
High [CVE-2026-50525] .NET Denial of Service Vulnerability
CVE-2026-50525Source published Jul 14, 2026
.NET Denial of Service Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
Affected products in this advisory
Microsoft .NET Framework 4.8 on Windows Server 2016
Microsoft .NET Framework 4.8 on Windows Server 2012 R2
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022
3 more entries in the full advisory.
Source-reported affected versions
Affected-version details not available in this record.
Source-reported fixed versions
KB5104034 (build 10.0.10)
KB5104032 (build 8.0.29)
KB5104033 (build 9.0.18)
KB5101014 (build 2.0.50727.9182 & 3.0.30729.9168)
4 more entries in the full advisory.
Mitigation guidance
Install the applicable security update for your platform: KB5104034, KB5104032, KB5104033, KB5101014, KB5101002, KB5101007 (see the Microsoft Update Catalog).
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityHigh7.5
High [CVE-2026-50525] .NET: Denial of Service due to uncontrolled resource allocation
CVE-2026-50525Source published Jul 14, 2026Source updated Jul 14, 2026
Allocation of resources without limits or throttling in.NET allows an unauthorized attacker to deny service over a network. A flaw was found in.NET where uncontrolled allocation of resources can lead to a Denial of Service (DoS). An unauthorized remote attacker could exploit this vulnerability by continuously requesting resources without limits or throttling, causing the affected system to become unresponsive or crash. This can disrupt the availability of services running on the.NET framework. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-770. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux…
Affected products in this advisory
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
Red Hat Enterprise Linux 9.6 Extended Update Support
4 more entries in the full advisory.
Source-reported affected versions
Affected-version details not available in this record.
Source-reported fixed versions
dotnet8.0-0:8.0.129-1.el10_2
dotnet9.0-0:9.0.119-1.el10_2
dotnet10.0-0:10.0.110-1.el10_2
dotnet8.0-0:8.0.130-1.el10_0
30 more entries in the full advisory.
Mitigation guidance
No mitigation guidance extracted; consult the source.
Full advisory and evidence Open source bulletin

All MS Server advisories

Follow CVE-2026-50525 in the free weekly digest

Every Monday: whether it was added to CISA KEV, reported exploited, got a fix or changed severity, plus the week's critical and high advisories.

Browse the latest tracked CVEs or the CVEs listed in CISA KEV.

iPhone and Android apps · New on the App Store

Get alerts for new CVEs on your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts on Android See app features