{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-23396 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-23396 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-23396 is a medium-severity denial of service vulnerability in Microsoft Office Online Server, published on 14 Mar 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-2023-23396 and fix it if it is affected.\n\nWhat it is: CVE-2023-23396 is a medium-severity denial of service vulnerability in Microsoft Office Online Server, published on 14 Mar 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-2023-23396 in the wild and no public exploit code.\n\nAffected product: Microsoft Office Online Server. 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-2023-23396/ (Markdown: https://insights.sbomify.com/CVE-2023-23396/index.md)","id":"CVE-2023-23396","markdown":"https://insights.sbomify.com/CVE-2023-23396/index.md","name":"CVE-2023-23396","record":{"aliases":["GHSA-gp6v-q35c-7fh4"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Office Online Server","requires_auth":"none","summary":"Attackers can cause a denial of service in Microsoft Office Online Server by exploiting a resource exhaustion vulnerability.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"office_online_server","vendor":"microsoft"},{"product":"office_web_apps_server","vendor":"microsoft"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Microsoft Excel Denial of Service Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-03-16","github_poc":1,"max_poc_stars":6,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-03-16T17:28:27Z","kind":"github_poc","ref":"https://github.com/LucaBarile/CVE-2023-23396","stars":6,"title":"Exploit and report for CVE-2023-23396."}],"tier":"poc_unverified"},"has_fix":null,"headline":"Microsoft Excel Denial of Service Vulnerability","id":"CVE-2023-23396","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:office_online_server","products":["microsoft:office_online_server","microsoft:office_web_apps_server"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Office Outlook Privilege Escalation","id":"CVE-2023-23397"},"packages":[],"prev":{"headline":"Microsoft SharePoint Server Spoofing Vulnerability","id":"CVE-2023-23395"},"products":["Microsoft Office Online Server","Microsoft Office Web Apps Server 2013 Service Pack 1"],"published":"2023-03-14","related":[{"cvss_score":7.8,"headline":"Microsoft Excel Remote Code Execution Vulnerability","id":"CVE-2022-33648","kev_date_added":null,"published":"2022-08-09"},{"cvss_score":7.8,"headline":"Memory corruption in Microsoft Office","id":"CVE-2017-8743","kev_date_added":null,"published":"2017-09-13"},{"cvss_score":6.1,"headline":"Cross-site scripting in Microsoft Office Online Server","id":"CVE-2020-1442","kev_date_added":null,"published":"2020-07-14"},{"cvss_score":5.5,"headline":"Microsoft Office Information Disclosure Vulnerability","id":"CVE-2022-30159","kev_date_added":null,"published":"2022-06-15"},{"cvss_score":5.5,"headline":"Microsoft Office Information Disclosure Vulnerability","id":"CVE-2022-30171","kev_date_added":null,"published":"2022-06-15"},{"cvss_score":5.5,"headline":"Microsoft Office Information Disclosure Vulnerability","id":"CVE-2022-30172","kev_date_added":null,"published":"2022-06-15"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-28","vendors":["Microsoft"]},"summary":"Attackers can cause a denial of service in Microsoft Office Online Server by exploiting a resource exhaustion vulnerability.","url":"https://insights.sbomify.com/CVE-2023-23396/"}