{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-26563 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-26563 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-26563 is a high-severity missing authorization vulnerability in Synology Diskstation Manager, published on 26 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-26563 and fix it if it is affected.\n\nWhat it is: CVE-2021-26563 is a high-severity missing authorization vulnerability in Synology Diskstation Manager, published on 26 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-26563 in the wild and no public exploit code.\n\nAffected product: Synology Diskstation Manager. 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-2021-26563/ (Markdown: https://insights.sbomify.com/CVE-2021-26563/index.md)","id":"CVE-2021-26563","markdown":"https://insights.sbomify.com/CVE-2021-26563/index.md","name":"CVE-2021-26563","record":{"aliases":["GHSA-ppq5-6h29-8hm2"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Synology NAS OS","requires_auth":"high_privilege","summary":"Local attackers can execute arbitrary code on Synology NAS devices due to incorrect authorization in the agent registration daemon.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[{"product":"diskstation_manager","vendor":"synology"},{"product":"diskstation_manager_unified_controller","vendor":"synology"},{"product":"skynas_firmware","vendor":"synology"},{"product":"vs960hd_firmware","vendor":"synology"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified vectors.","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":"Missing authorization in DiskStation Manager (DSM)","id":"CVE-2021-26563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"synology:diskstation_manager","products":["synology:diskstation_manager"],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in Synology DiskStation Manager (DSM)","id":"CVE-2021-26564"},"packages":[],"prev":{"headline":"Memory corruption in Synology DiskStation Manager (DSM)","id":"CVE-2021-26562"},"products":["DiskStation Manager (DSM)"],"published":"2021-02-26","related":[{"cvss_score":10,"headline":"Memory corruption in DiskStation Manager (DSM)","id":"CVE-2022-27624","kev_date_added":null,"published":"2022-10-20"},{"cvss_score":10,"headline":"Memory corruption in DiskStation Manager (DSM)","id":"CVE-2022-27625","kev_date_added":null,"published":"2022-10-20"},{"cvss_score":10,"headline":"Race condition in DiskStation Manager (DSM)","id":"CVE-2022-27626","kev_date_added":null,"published":"2022-10-20"},{"cvss_score":10,"headline":"Path traversal in n/a","id":"CVE-2013-6955","kev_date_added":null,"published":"2014-01-09"},{"cvss_score":9.8,"headline":"Memory corruption in DiskStation Manager (DSM)","id":"CVE-2022-22687","kev_date_added":null,"published":"2022-03-25"},{"cvss_score":9.8,"headline":"Use after free in DiskStation Manager (DSM)","id":"CVE-2021-27649","kev_date_added":null,"published":"2021-06-23"},{"cvss_score":9.8,"headline":"Race condition in Synology DiskStation Manager (DSM)","id":"CVE-2021-26569","kev_date_added":null,"published":"2021-03-12"}],"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":"2024-09-16","vendors":["Synology"]},"summary":"Local attackers can execute arbitrary code on Synology NAS devices due to incorrect authorization in the agent registration daemon.","url":"https://insights.sbomify.com/CVE-2021-26563/"}