{"answers":{"affected":"It affects 5 products.","exploited":"Yes. Attackers have exploited CVE-2021-30663 in the wild since at least 3 Nov 2021.","fix":"Upgrade to a fixed version. US federal agencies must fix it by 17 Nov 2021.","what":"CVE-2021-30663 is a high-severity vulnerability in Apple Ipados, published on 8 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-30663 and fix it if it is affected.\n\nWhat it is: CVE-2021-30663 is a high-severity vulnerability in Apple Ipados, published on 8 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2021-30663 in the wild since at least 3 Nov 2021.\n\nAffected product: Apple Ipados. 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-2021-30663/ (Markdown: https://insights.sbomify.com/CVE-2021-30663/index.md)","id":"CVE-2021-30663","markdown":"https://insights.sbomify.com/CVE-2021-30663/index.md","name":"CVE-2021-30663","record":{"aliases":["DEBIAN-CVE-2021-30663","GHSA-5g93-pf3w-6f59","UBUNTU-CVE-2021-30663"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Apple WebKit","requires_auth":"none","summary":"Processing maliciously crafted web content may lead to arbitrary code execution due to an integer overflow in WebKit.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apple","cpe":[{"product":"ipados","vendor":"apple"},{"product":"iphone_os","vendor":"apple"},{"product":"macos","vendor":"apple"},{"product":"safari","vendor":"apple"},{"product":"tvos","vendor":"apple"}],"cvss":{"score":7.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":true,"headline":"Apple Multiple Products WebKit Integer Overflow","id":"CVE-2021-30663","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Unknown","product":"Multiple Products","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Apple","vulnerabilityName":"Apple Multiple Products WebKit Integer Overflow Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"apple:ipados","products":["apple:ipados","apple:iphone_os","apple:macos","apple:safari","apple:tvos"],"type":"integer_overflow","year":"2021"},"n_packages":0,"n_references":5,"next":{"headline":"Memory corruption in iOS and iPadOS","id":"CVE-2021-30664"},"packages":[],"prev":{"headline":"Memory corruption in iOS and iPadOS","id":"CVE-2021-30662"},"products":["macOS"],"published":"2021-09-08","related":[{"cvss_score":10,"headline":"Apple iOS, iPadOS, and macOS Out-of-Bounds Write","id":"CVE-2025-43300","kev_date_added":"2025-08-21","published":"2025-08-21"},{"cvss_score":10,"headline":"Apple Multiple Products WebKit Out-of-Bounds Write","id":"CVE-2025-24201","kev_date_added":"2025-03-13","published":"2025-03-11"},{"cvss_score":10,"headline":"Apple Multiple Products Use-After-Free","id":"CVE-2025-24085","kev_date_added":"2025-01-29","published":"2025-01-27"},{"cvss_score":9.8,"headline":"Apple Multiple Products Memory Corruption","id":"CVE-2025-31200","kev_date_added":"2025-04-17","published":"2025-04-16"},{"cvss_score":9.8,"headline":"Apple Multiple Products Arbitrary Read and Write","id":"CVE-2025-31201","kev_date_added":"2025-04-17","published":"2025-04-16"},{"cvss_score":9.8,"headline":"Apple Memory Corruption","id":"CVE-2022-22587","kev_date_added":"2022-01-28","published":"2022-03-18"},{"cvss_score":9.8,"headline":"Apple iOS, iPadOS, and macOS WebKit Remote Code Execution","id":"CVE-2021-1870","kev_date_added":"2021-11-03","published":"2021-04-02"}],"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":"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)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Apple"]},"summary":"Processing maliciously crafted web content may lead to arbitrary code execution due to an integer overflow in WebKit.","url":"https://insights.sbomify.com/CVE-2021-30663/"}