{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2020-0646 in the wild since at least 3 Nov 2021.","fix":"No fix has been published for CVE-2020-0646 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-0646 is a critical code injection vulnerability in Microsoft .Net Framework, published on 14 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-0646 and fix it if it is affected.\n\nWhat it is: CVE-2020-0646 is a critical code injection vulnerability in Microsoft .Net Framework, published on 14 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2020-0646 in the wild since at least 3 Nov 2021.\n\nAffected product: Microsoft .Net Framework. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-0646/ (Markdown: https://insights.sbomify.com/CVE-2020-0646/index.md)","id":"CVE-2020-0646","markdown":"https://insights.sbomify.com/CVE-2020-0646/index.md","name":"CVE-2020-0646","record":{"aliases":["GHSA-4w3v-83v8-mg94"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft .NET Framework","requires_auth":"none","summary":"Remote attackers can execute arbitrary code by exploiting improper input validation in the Microsoft .NET Framework.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net_framework","vendor":"microsoft"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-91","name":"XML Injection"}],"description":"A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2020-03-02","github_poc":0,"max_poc_stars":null,"metasploit":1,"nuclei":0,"refs":[{"date":"2020-03-02","kind":"metasploit","ref":"exploit/windows/http/sharepoint_workflows_xoml","stars":null,"title":"SharePoint Workflows XOML Injection"},{"date":"2020-03-31","kind":"exploitdb","ref":"48275","stars":null,"title":"SharePoint Workflows - XOML Injection (Metasploit)"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft .NET Framework Remote Code Execution","id":"CVE-2020-0646","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":".NET Framework","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft .NET Framework Remote Code Execution Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:.net_framework","products":["microsoft:.net_framework"],"type":"code_injection","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Other in Office Online Server","id":"CVE-2020-0647"},"packages":[],"prev":{"headline":"Other in Windows","id":"CVE-2020-0645"},"products":["Microsoft .NET Framework 3.0","Microsoft .NET Framework 3.5","Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016","Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016  (Server Core installation)","Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for x64-based Systems","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 2019  (Server Core installation)","Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803  (Server Core Installation)","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems","Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019","Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019  (Server Core installation)","Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)","Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation)","Microsoft .NET Framework 3.5.1","Microsoft .NET Framework 4.5.2","Microsoft .NET Framework 4.6","Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2","Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2","Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems","Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems","Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems","Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems","Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems","Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems","Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1","Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1","Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems","Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems","Microsoft .NET Framework 4.8 on Windows RT 8.1","Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1","Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)","Microsoft .NET Framework 4.8 on Windows Server 2012","Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)","Microsoft .NET Framework 4.8 on Windows Server 2012 R2","Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)","Microsoft .NET Framework 4.8 on Windows Server 2016","Microsoft .NET Framework 4.8 on Windows Server 2016  (Server Core installation)","Microsoft .NET Framework 4.8 on Windows Server, version 1803  (Server Core Installation)"],"published":"2020-01-14","related":[{"cvss_score":7.8,"headline":"Microsoft .NET Framework Remote Code Execution","id":"CVE-2017-8759","kev_date_added":"2021-11-03","published":"2017-09-13"},{"cvss_score":7.8,"headline":"Microsoft Windows Remote Code Execution","id":"CVE-2015-1671","kev_date_added":"2022-05-25","published":"2015-05-13"},{"cvss_score":7.5,"headline":"Microsoft .NET Framework Information Disclosure","id":"CVE-2024-29059","kev_date_added":"2025-02-04","published":"2024-03-22"},{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2014-4073","kev_date_added":null,"published":"2014-10-15"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2014-4121","kev_date_added":null,"published":"2014-10-15"},{"cvss_score":10,"headline":"Code injection in n/a","id":"CVE-2014-1806","kev_date_added":null,"published":"2014-05-14"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"Remote attackers can execute arbitrary code by exploiting improper input validation in the Microsoft .NET Framework.","url":"https://insights.sbomify.com/CVE-2020-0646/"}