{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-21720 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-21720 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-21720 is a medium-severity memory corruption vulnerability in Microsoft Edge Chromium, published on 14 Feb 2023. 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-2023-21720 and fix it if it is affected.\n\nWhat it is: CVE-2023-21720 is a medium-severity memory corruption vulnerability in Microsoft Edge Chromium, published on 14 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2023-21720 in the wild and no public exploit code.\n\nAffected product: Microsoft Edge Chromium. 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-2023-21720/ (Markdown: https://insights.sbomify.com/CVE-2023-21720/index.md)","id":"CVE-2023-21720","markdown":"https://insights.sbomify.com/CVE-2023-21720/index.md","name":"CVE-2023-21720","record":{"aliases":["GHSA-rwj7-xp4r-5r27"],"analysis":{"component_type":"browser","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft Edge browser","requires_auth":"none","summary":"An attacker can exploit a memory corruption flaw in Microsoft Edge to execute arbitrary code, requiring users to apply the latest security patch.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"edge_chromium","vendor":"microsoft"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-126","name":"Buffer Over-read"}],"description":"Microsoft Edge (Chromium-based) Tampering Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Microsoft Edge (Chromium-based) Tampering Vulnerability","id":"CVE-2023-21720","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:edge_chromium","products":["microsoft:edge_chromium"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft OneNote Elevation of Privilege Vulnerability","id":"CVE-2023-21721"},"packages":[],"prev":{"headline":"Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability","id":"CVE-2023-21719"},"products":["Microsoft Edge (Chromium-based)"],"published":"2023-02-14","related":[{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2024-21326","kev_date_added":null,"published":"2024-01-26"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2023-35618","kev_date_added":null,"published":"2023-12-07"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2023-36735","kev_date_added":null,"published":"2023-09-15"},{"cvss_score":9.6,"headline":"Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability","id":"CVE-2022-33649","kev_date_added":null,"published":"2022-08-09"},{"cvss_score":9,"headline":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","id":"CVE-2026-58289","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":8.8,"headline":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","id":"CVE-2026-69486","kev_date_added":null,"published":"2026-09-15"},{"cvss_score":8.8,"headline":"Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability","id":"CVE-2026-85893","kev_date_added":null,"published":"2026-09-15"}],"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":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Microsoft"]},"summary":"An attacker can exploit a memory corruption flaw in Microsoft Edge to execute arbitrary code, requiring users to apply the latest security patch.","url":"https://insights.sbomify.com/CVE-2023-21720/"}