{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-21721 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-21721 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-21721 is a medium-severity authentication bypass vulnerability in Microsoft OneNote for Android, published on 14 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-21721 and fix it if it is affected.\n\nWhat it is: CVE-2023-21721 is a medium-severity authentication bypass vulnerability in Microsoft OneNote for Android, published on 14 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-21721 in the wild and no public exploit code.\n\nAffected product: Microsoft OneNote for Android. 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-2023-21721/ (Markdown: https://insights.sbomify.com/CVE-2023-21721/index.md)","id":"CVE-2023-21721","markdown":"https://insights.sbomify.com/CVE-2023-21721/index.md","name":"CVE-2023-21721","record":{"aliases":["GHSA-554f-p6jr-9fv8"],"analysis":{"component_type":"mobile_application","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft OneNote Android","requires_auth":"low_privilege","summary":"Attackers can exploit an authentication bypass in Microsoft OneNote for Android to escalate privileges on the device.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"onenote","vendor":"microsoft"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Microsoft OneNote Elevation of Privilege 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 OneNote Elevation of Privilege Vulnerability","id":"CVE-2023-21721","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":".NET Framework Denial of Service Vulnerability","id":"CVE-2023-21722"},"packages":[],"prev":{"headline":"Microsoft Edge (Chromium-based) Tampering Vulnerability","id":"CVE-2023-21720"},"products":["Microsoft OneNote for Android"],"published":"2023-02-14","related":[{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2014-2815","kev_date_added":null,"published":"2014-08-12"},{"cvss_score":7.8,"headline":"Code injection in Office","id":"CVE-2017-0197","kev_date_added":null,"published":"2017-04-12"},{"cvss_score":7.1,"headline":"Privilege escalation in OneNote","id":"CVE-2024-41159","kev_date_added":null,"published":"2024-12-18"},{"cvss_score":6.5,"headline":"Microsoft OneNote Spoofing Vulnerability","id":"CVE-2023-33140","kev_date_added":null,"published":"2023-06-13"},{"cvss_score":5.5,"headline":"Information disclosure in n/a","id":"CVE-2016-3315","kev_date_added":null,"published":"2016-08-09"},{"cvss_score":4.6,"headline":"Microsoft OneNote Spoofing Vulnerability","id":"CVE-2023-36769","kev_date_added":null,"published":"2023-11-06"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Microsoft"]},"summary":"Attackers can exploit an authentication bypass in Microsoft OneNote for Android to escalate privileges on the device.","url":"https://insights.sbomify.com/CVE-2023-21721/"}