{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2021-30955 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-30955 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-30955 is a high-severity vulnerability in Apple Ipados, published on 24 Aug 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-2021-30955 and fix it if it is affected.\n\nWhat it is: CVE-2021-30955 is a high-severity vulnerability in Apple Ipados, published on 24 Aug 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: There is no known exploitation of CVE-2021-30955 in the wild and no public exploit code.\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-2021-30955/ (Markdown: https://insights.sbomify.com/CVE-2021-30955/index.md)","id":"CVE-2021-30955","markdown":"https://insights.sbomify.com/CVE-2021-30955/index.md","name":"CVE-2021-30955","record":{"aliases":[],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Apple operating systems","requires_auth":"none","summary":"A malicious application can exploit a race condition to execute arbitrary code with kernel privileges on Apple devices.","user_interaction":"required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apple","cpe":[{"product":"ipados","vendor":"apple"},{"product":"iphone_os","vendor":"apple"},{"product":"macos","vendor":"apple"},{"product":"tvos","vendor":"apple"},{"product":"watchos","vendor":"apple"}],"cvss":{"score":7,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"A race condition was addressed with improved state handling. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. A malicious application may be able to execute arbitrary code with kernel privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2022-02-28","github_poc":7,"max_poc_stars":270,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-03-01T12:41:03Z","kind":"github_poc","ref":"https://github.com/b1n4r1b01/desc_race","stars":270,"title":"iOS 15.1 kernel exploit POC for CVE-2021-30955"},{"date":"2022-03-14T06:42:45Z","kind":"github_poc","ref":"https://github.com/markie-dev/desc_race_A15","stars":48,"title":"CVE-2021-30955 iOS 15.1.1 POC for 6GB RAM devices (A14-A15)"},{"date":"2022-03-18T12:32:10Z","kind":"github_poc","ref":"https://github.com/GeoSn0w/Pentagram-exploit-tester","stars":19,"title":"A test app to check if your device is vulnerable to CVE-2021-30955"},{"date":"2022-02-28T23:28:39Z","kind":"github_poc","ref":"https://github.com/verygenericname/CVE-2021-30955-POC-IPA","stars":3,"title":"https://gist.github.com/jakeajames/37f72c58c775bfbdda3aa9575149a8aa compiled into a ipa 15.0-15.2b1"},{"date":"2022-02-28T22:23:51Z","kind":"github_poc","ref":"https://github.com/nickorlow/CVE-2021-30955-POC","stars":1,"title":"Jake Jame's proof of concept wrapped into an iOS app for  CVE-2021-30955"},{"date":"2022-02-28T14:54:10Z","kind":"github_poc","ref":"https://github.com/timb-machine-mirrors/jakeajames-CVE-2021-30955","stars":0,"title":"Clone from gist"},{"date":"2022-03-24T09:52:34Z","kind":"github_poc","ref":"https://github.com/st-rnd/desc_race-1","stars":0,"title":"desc_race exploit for iOS 15.0 - 15.1.1 (with stable kernel r/w primitives) (CVE-2021-30955) "}],"tier":"poc_unverified"},"has_fix":null,"headline":"Race condition in iOS and iPadOS","id":"CVE-2021-30955","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"apple:ipados","products":["apple:ipados","apple:iphone_os","apple:macos","apple:tvos","apple:watchos"],"type":"race_condition","year":"2021"},"n_packages":0,"n_references":4,"next":{"headline":"Information disclosure in iOS and iPadOS","id":"CVE-2021-30956"},"packages":[],"prev":{"headline":"Memory corruption in iOS and iPadOS","id":"CVE-2021-30954"},"products":["iOS and iPadOS","macOS","watchOS"],"published":"2021-08-24","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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Apple"]},"summary":"A malicious application can exploit a race condition to execute arbitrary code with kernel privileges on Apple devices.","url":"https://insights.sbomify.com/CVE-2021-30955/"}