{"answers":{"affected":"2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2018-8298 in the wild since at least 3 Mar 2022.","fix":"Upgrade Microsoft.ChakraCore to 1.10.1 or later. US federal agencies must fix it by 17 Mar 2022.","what":"CVE-2018-8298 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 11 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-8298 and fix it if it is affected.\n\nWhat it is: CVE-2018-8298 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 11 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2018-8298 in the wild since at least 3 Mar 2022.\n\nAffected packages and fixed versions:\n- Microsoft.ChakraCore (NuGet): affected all versions; fixed in 1.10.1\n- Microsoft.ChakraCore (NuGet): affected all versions; fixed in 1.10.1\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-2018-8298/ (Markdown: https://insights.sbomify.com/CVE-2018-8298/index.md)","id":"CVE-2018-8298","markdown":"https://insights.sbomify.com/CVE-2018-8298/index.md","name":"CVE-2018-8298","record":{"aliases":["GHSA-wgw2-wwq8-c7wf"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"ChakraCore scripting engine","requires_auth":"none","summary":"Remote attackers can execute arbitrary code by exploiting a memory corruption flaw in the ChakraCore scripting engine.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"chakracore","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"description":"A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability.\" This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.","ecosystems":["NuGet"],"exploits":{"exploitdb":1,"first_seen":"2018-08-17","github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-08-17","kind":"exploitdb","ref":"45217","stars":null,"title":"Microsoft Edge Chakra JIT - InitializeNumberFormat and InitializeDateTimeFormat Type Confusion"}],"tier":"exploited"},"has_fix":true,"headline":"ChakraCore Scripting Engine Type Confusion","id":"CVE-2018-8298","indexable":true,"kev":{"dateAdded":"2022-03-03","dueDate":"2022-03-17","knownRansomwareCampaignUse":"Unknown","product":"ChakraCore scripting engine","requiredAction":"Apply updates per vendor instructions.","vendorProject":"ChakraCore","vulnerabilityName":"ChakraCore Scripting Engine Type Confusion Vulnerability"},"kind":"cve","links":{"ecosystem":"NuGet","product":"microsoft:chakracore","products":["microsoft:chakracore"],"type":"memory_corruption","year":"2018"},"n_packages":2,"n_references":3,"next":{"headline":"Cross-site scripting in Microsoft SharePoint","id":"CVE-2018-8299"},"packages":[{"ecosystem":"NuGet","fixed":["1.10.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.ChakraCore","purl":null,"source":"GHSA-wgw2-wwq8-c7wf"},{"ecosystem":"NuGet","fixed":["1.10.1"],"introduced":["0"],"last_affected":[],"package":"Microsoft.ChakraCore","purl":"pkg:nuget/Microsoft.ChakraCore","source":"GHSA-wgw2-wwq8-c7wf"}],"prev":{"headline":"Information disclosure in Microsoft Edge","id":"CVE-2018-8297"},"products":["ChakraCore"],"published":"2018-07-11","related":[{"cvss_score":4.2,"headline":"Microsoft Edge and Internet Explorer Memory Corruption","id":"CVE-2020-0878","kev_date_added":"2021-11-03","published":"2020-09-11"},{"cvss_score":9.8,"headline":"ChakraCore RCE Vulnerability","id":"CVE-2018-8500","kev_date_added":null,"published":"2018-10-10"},{"cvss_score":9.8,"headline":"ChakraCore vulnerable to privilege escalation","id":"CVE-2017-11767","kev_date_added":null,"published":"2017-11-02"},{"cvss_score":9.8,"headline":"ChakraCore RCE Vulnerability","id":"CVE-2017-8658","kev_date_added":null,"published":"2017-08-11"},{"cvss_score":8.8,"headline":"Scripting Engine Memory Corruption Vulnerability","id":"CVE-2020-1555","kev_date_added":null,"published":"2020-08-17"},{"cvss_score":8.1,"headline":"ChakraCore RCE Vulnerability","id":"CVE-2020-1073","kev_date_added":null,"published":"2020-06-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"GPL-2.0-or-later","name":"Exploit-DB"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"Remote attackers can execute arbitrary code by exploiting a memory corruption flaw in the ChakraCore scripting engine.","url":"https://insights.sbomify.com/CVE-2018-8298/"}