Description
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 | 3.5.0 – < 2.0.50727.9188 AND 3.0.30729.9171 | 2.0.50727.9188 AND 3.0.30729.9171 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 | 3.0.0.0 – < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 | 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 | 4.7.0 – < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 | 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 | 4.8.0 – < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 | 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 | 4.8.1 – < 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 | 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 |
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 | 4.7.0 – < 4.7.4150.0 | 4.7.4150.0 |
| Microsoft | Microsoft .NET Framework 4.8 | 4.8.0 – < 4.8.4811.0 | 4.8.4811.0 |
| Microsoft | Microsoft .NET Framework 4.8.1 | 4.8.0.0 – < 4.8.9363.0 | 4.8.9363.0 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 – < 17.14.42 | 17.14.42 |
| Microsoft | Microsoft Visual Studio 2026 version 18.10 | 18.10.0 – < 18.10.4 | 18.10.4 |
| Microsoft | System.Security.Cryptography.Pkcs | 10.0.0 – < 10.0.13 | 10.0.13 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.10.1 | USN-8942-1 |
| Ubuntu 26.10 | dotnet11 | 11.0.100-11.0.0~rc2-0ubuntu1~26.10.1 | USN-8942-1 |
| Ubuntu 26.04 LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~26.04.1 | USN-8942-1 |
| Ubuntu 24.04 LTS | dotnet10 | 10.0.113-10.0.13-0ubuntu1~24.04.1 | USN-8942-1 |
| Ubuntu 24.04 LTS | dotnet8 | 8.0.132-8.0.32-0ubuntu1~24.04.1 | USN-8942-1 |
| Ubuntu 22.04 LTS | dotnet6 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | dotnet8 | 8.0.132-8.0.32-0ubuntu1~22.04.1 | USN-8942-1 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | dotnet-host +8 | 10.0.13-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux 10 | dotnet-hostfxr-8.0 +7 | 8.0.32-1.el10_2 | ALSA-2026:86168 |
| AlmaLinux 10 | dotnet-hostfxr-9.0 +7 | 9.0.21-1.el10_2 | ALSA-2026:86172 |
| AlmaLinux 10 | dotnet-sdk-10.0 +4 | 10.0.113-1.el10_2 | ALSA-2026:86195 |
| AlmaLinux 10 | dotnet-sdk-8.0 +3 | 8.0.132-1.el10_2 | ALSA-2026:86168 |
| AlmaLinux 10 | dotnet-sdk-9.0 +5 | 9.0.122-1.el10_2 | ALSA-2026:86172 |
| AlmaLinux 9 | dotnet-host +8 | 10.0.13-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux 9 | dotnet-hostfxr-8.0 +7 | 8.0.32-1.el9_8 | ALSA-2026:86169 |
| AlmaLinux 9 | dotnet-hostfxr-9.0 +7 | 9.0.21-1.el9_8 | ALSA-2026:86171 |
| AlmaLinux 9 | dotnet-sdk-10.0 +4 | 10.0.113-1.el9_8 | ALSA-2026:86193 |
| AlmaLinux 9 | dotnet-sdk-8.0 +3 | 8.0.132-1.el9_8 | ALSA-2026:86169 |
| AlmaLinux 9 | dotnet-sdk-9.0 +5 | 9.0.122-1.el9_8 | ALSA-2026:86171 |
| AlmaLinux 8 | dotnet +5 | 10.0.113-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux 8 | dotnet-hostfxr-10.0 +7 | 10.0.13-1.el8_10 | ALSA-2026:86192 |
| AlmaLinux 8 | dotnet-hostfxr-8.0 +7 | 8.0.32-2.el8_10 | ALSA-2026:86594 |
| AlmaLinux 8 | dotnet-hostfxr-9.0 +7 | 9.0.21-1.el8_10 | ALSA-2026:86170 |
| AlmaLinux 8 | dotnet-sdk-8.0 +3 | 8.0.132-2.el8_10 | ALSA-2026:86594 |
| AlmaLinux 8 | dotnet-sdk-9.0 +5 | 9.0.122-1.el8_10 | ALSA-2026:86170 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | dotnet10-runtime | 10.0.13-r0 | — |
| Alpine v3.24 | dotnet8-runtime | 8.0.32-r0 | — |
| Alpine v3.24 | dotnet9-runtime | 9.0.21-r0 | — |
| Alpine v3.23 | dotnet10-runtime | 10.0.13-r0 | — |
| Alpine v3.23 | dotnet8-runtime | 8.0.32-r0 | — |
| Alpine v3.23 | dotnet9-runtime | 9.0.21-r0 | — |
| Alpine v3.22 | dotnet8-runtime | 8.0.32-r0 | — |
| Alpine v3.22 | dotnet9-runtime | 9.0.21-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | dotnet +5 | 8.0.133-1.amzn2023.0.1 | ALAS2023-2026-3367, ALAS2023-2026-3366, ALAS2023-2026-3248 |
| Amazon Linux 2023 | dotnet-host +8 | 8.0.33-1.amzn2023.0.1 | ALAS2023-2026-3367, ALAS2023-2026-3366, ALAS2023-2026-3248 |
| Amazon Linux 2023 | dotnet-hostfxr-10.0 +7 | 10.0.14-1.amzn2023.0.1 | ALAS2023-2026-3366 |
| Amazon Linux 2023 | dotnet-hostfxr-9.0 +7 | 9.0.21-1.amzn2023.0.1 | ALAS2023-2026-3248 |
| Amazon Linux 2023 | dotnet-sdk-10.0 +4 | 10.0.114-1.amzn2023.0.1 | ALAS2023-2026-3366 |
| Amazon Linux 2023 | dotnet-sdk-9.0 +4 | 9.0.122-1.amzn2023.0.1 | ALAS2023-2026-3248 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | dotnet-10-sdk | 10.0.113-r1 | — |
| Wolfi rolling | dotnet-8-sdk | 8.0.132-r0 | — |
| Wolfi rolling | dotnet-9-sdk | 9.0.122-r0 | — |
| Wolfi rolling | dotnet-bootstrap-8 | 8.0.134-r0 | — |
| Wolfi rolling | dotnet-bootstrap-9 | 9.0.124-r0 | — |
| Wolfi rolling | dotnet-sdk-10.0.2 | 10.0.204-r9 | — |
| Wolfi rolling | dotnet-sdk-10.0.3 | 10.0.303-r7 | — |
| Wolfi rolling | dotnet-sdk-10.0.4 | 10.0.402-r0 | — |
| Wolfi rolling | dotnet-sdk-stage0-10 | 10.0.113-r0 | — |
| Wolfi rolling | ilspycmd | 11.1-r1 | — |
| Wolfi rolling | promitor | 2.16.1-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | System.Security.Cryptography.Pkcs | >= 10.0.0, < 10.0.13 | 10.0.13 | GHSA-846f-f764-76mx |
| NuGet | System.Security.Cryptography.Pkcs | >= 11.0.0-preview.1, < 11.0.0-rc.2 | 11.0.0-rc.2 | GHSA-846f-f764-76mx |
| NuGet | System.Security.Cryptography.Pkcs | >= 8.0.0, < 8.0.2 | 8.0.2 | GHSA-846f-f764-76mx |
| NuGet | System.Security.Cryptography.Pkcs | >= 9.0.0, < 9.0.21 | 9.0.21 | GHSA-846f-f764-76mx |
Advisories 16
- ALSA-2026:86192 Critical: .NET 10.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2026:86195 Critical: .NET 10.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 5, 2026
- ALSA-2026:86193 Critical: .NET 10.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 5, 2026
- WID-SEC-2026-3893 Microsoft Entwicklerwerkzeuge: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 4, 2026
- ALSA-2026:86594 Critical: .NET 8.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 2, 2026
- ALAS2023-2026-3367 Important: dotnet8.0 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 2, 2026
- ALAS2023-2026-3366 Important: dotnet10.0 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 2, 2026
- ALSA-2026:86172 Critical: .NET 9.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 31, 2026
- ALSA-2026:86168 Critical: .NET 8.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 31, 2026
- ALSA-2026:86171 Critical: .NET 9.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 31, 2026
- ALSA-2026:86169 Critical: .NET 8.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 31, 2026
- ALSA-2026:86170 Critical: .NET 9.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 31, 2026
- ALAS2023-2026-3248 Critical: dotnet9.0 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 30, 2026
- USN-8942-1 dotnet8, dotnet10, dotnet11 vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- MSRC-CVE-2026-84008 .NET Denial of Service Vulnerability Microsoft Security Response Center · Oct 15, 2026
- NCSC-2026-0426 Kwetsbaarheden verholpen in Microsoft Developer Tools NCSC-NL (Netherlands) · Oct 13, 2026
References
- .NET Denial of Service Vulnerability vendor-advisory patch