{"id":"CVE-2026-62901","title":".NET Denial of Service Vulnerability","summary":"Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-606"],"vendor":"Microsoft","product":".NET 10.0","affected":[".net_10.0 >= 10.0.0 < 10.0.11",".net_8.0 >= 8.0.0 < 8.0.30",".net_9.0 >= 9.0.0 < 9.0.19","visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.38","visual_studio_2026_version_18.8 >= 18.0 < 18.8.3"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-08-12T15:28:12.602676Z"},"published":"2026-08-11","updated":"2026-10-21","sourceUpdated":"2026-10-21T20:52:16.424Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62901","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62901","label":".NET Denial of Service Vulnerability"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-62901.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-62901"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2512180"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-62901"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62901"},{"url":"https://access.redhat.com/errata/RHSA-2026:58566"},{"url":"https://access.redhat.com/errata/RHSA-2026:58567"},{"url":"https://access.redhat.com/errata/RHSA-2026:55858"},{"url":"https://access.redhat.com/errata/RHSA-2026:54541"},{"url":"https://access.redhat.com/errata/RHSA-2026:54590"},{"url":"https://access.redhat.com/errata/RHSA-2026:54542"},{"url":"https://access.redhat.com/errata/RHSA-2026:54538"},{"url":"https://access.redhat.com/errata/RHSA-2026:54550"},{"url":"https://access.redhat.com/errata/RHSA-2026:58568"},{"url":"https://access.redhat.com/errata/RHSA-2026:58569"},{"url":"https://access.redhat.com/errata/RHSA-2026:58570"},{"url":"https://access.redhat.com/errata/RHSA-2026:55857"},{"url":"https://access.redhat.com/errata/RHSA-2026:54574"},{"url":"https://access.redhat.com/errata/RHSA-2026:55856"},{"url":"https://access.redhat.com/errata/RHSA-2026:55142"},{"url":"https://access.redhat.com/errata/RHSA-2026:55405"},{"url":"https://access.redhat.com/errata/RHSA-2026:44914"},{"url":"https://github.com/dotnet/runtime/security/advisories/GHSA-m93f-wj8c-rp8p"},{"url":"https://github.com/dotnet/announcements/issues/428"},{"url":"https://github.com/advisories/GHSA-m93f-wj8c-rp8p"}],"tags":["cve.org","csaf","vex","red-hat","ghsa","nuget"],"epss":0.01232,"epssPercentile":0.68824,"aliases":["GHSA-m93f-wj8c-rp8p"],"ecosystem":"nuget","patched":["enterprise_linux_appstream_eus_v_10_0","enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_8","enterprise_linux_appstream_e4s_v_9_4","enterprise_linux_appstream_eus_v_9_6","enterprise_linux_appstream_v_9","enterprise_linux_codeready_linux_builder_eus_v_10_0","enterprise_linux_codeready_linux_builder_v_10","enterprise_linux_crb_v_8","codeready_linux_builder_eus_v_9_6","enterprise_linux_codeready_linux_builder_v_9","hardened_images"],"ingestedAt":"2026-08-11T19:48:29.105Z","slug":"CVE-2026-62901","body":"## Overview\n\nUnchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.\n\n## Affected\n\n- `.net_10.0 >= 10.0.0 < 10.0.11`\n- `.net_8.0 >= 8.0.0 < 8.0.30`\n- `.net_9.0 >= 9.0.0 < 9.0.19`\n- `visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.38`\n- `visual_studio_2026_version_18.8 >= 18.0 < 18.8.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-62901)\n\nAffected packages:\n\n- `Microsoft.NETCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.NETCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.NETCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.29`\n\nPatched in:\n\n- `Microsoft.NETCore.App.Runtime.win-arm64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.win-x64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.win-x86 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-arm 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.linux-x64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.osx-x64 10.0.11`\n- `Microsoft.NETCore.App.Runtime.win-arm64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.win-x64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.win-x86 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-arm 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.linux-x64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.osx-x64 9.0.19`\n- `Microsoft.NETCore.App.Runtime.win-arm64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.win-x64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.win-x86 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-arm 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.linux-x64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 8.0.30`\n- `Microsoft.NETCore.App.Runtime.osx-x64 8.0.30`\n\nSource: https://github.com/advisories/GHSA-m93f-wj8c-rp8p\n\n## Vendor advisories\n\n- **RHSA-2026:58566** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58566)\n- **RHSA-2026:58567** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58567)\n- **RHSA-2026:55858** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55858)\n- **RHSA-2026:54541** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54541)\n- **RHSA-2026:54590** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54590)\n- **RHSA-2026:54542** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54542)\n- **RHSA-2026:54538** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54538)\n- **RHSA-2026:54550** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:54550)\n- **RHSA-2026:58568** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58568)\n- **RHSA-2026:58569** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58569)\n- **RHSA-2026:58570** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58570)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}