{"id":"CVE-2026-70162","title":"A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests","summary":"A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET web applicati…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-405","CWE-770"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T23:17:57.420","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70162","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70162","label":"secure@microsoft.com"},{"url":"https://github.com/dotnet/runtime/security/advisories/GHSA-2fmv-rv2c-59x7"},{"url":"https://github.com/dotnet/announcements/issues/454"},{"url":"https://github.com/dotnet/runtime/issues/135699"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70162"},{"url":"https://github.com/advisories/GHSA-2fmv-rv2c-59x7"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-70162.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-70162"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2551706"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-70162"},{"url":"https://access.redhat.com/errata/RHSA-2026:84693"}],"tags":["nvd","cve.org","ghsa","nuget","csaf","vex","red-hat"],"ingestedAt":"2026-10-13T19:43:29.016Z","vendor":"Microsoft","product":"Microsoft Visual Studio 2022 version 17.14","affected":["visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.42","visual_studio_2026_version_18.10 >= 18.10.0 < 18.10.4","System.Security.Cryptography.Pkcs >= 10.0.0 < 10.0.13"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T22:08:21.799490Z"},"epss":0.00895,"epssPercentile":0.59318,"aliases":["GHSA-2fmv-rv2c-59x7"],"ecosystem":"nuget","patched":["System.Security.Cryptography.Pkcs 10.0.13","System.Security.Cryptography.Pkcs 11.0.0-rc.2","System.Security.Cryptography.Pkcs 8.0.2","System.Security.Cryptography.Pkcs 9.0.21"],"slug":"CVE-2026-70162","body":"## Overview\n\nA denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET web application.\nA remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET application.\nThe update addresses the vulnerability by correcting how the .NET web application handles web requests.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-70162)\n\nAffected packages:\n\n- `System.Security.Cryptography.Pkcs >= 10.0.0, <= 10.0.12`\n- `System.Security.Cryptography.Pkcs >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `System.Security.Cryptography.Pkcs >= 8.0.0, <= 8.0.1`\n- `System.Security.Cryptography.Pkcs >= 9.0.0, <= 9.0.20`\n\nPatched in:\n\n- `System.Security.Cryptography.Pkcs 10.0.13`\n- `System.Security.Cryptography.Pkcs 11.0.0-rc.2`\n- `System.Security.Cryptography.Pkcs 8.0.2`\n- `System.Security.Cryptography.Pkcs 9.0.21`\n\nSource: https://github.com/advisories/GHSA-2fmv-rv2c-59x7\n\n## Vendor advisories\n\n- **RHSA-2026:84693** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84693)","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}