{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-28216 in the wild and no public exploit code.","fix":"Change a configuration setting.","what":"CVE-2021-28216 is a high-severity memory corruption vulnerability in TianoCore EDK II, published on 5 Aug 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-2021-28216 and fix it if it is affected.\n\nWhat it is: CVE-2021-28216 is a high-severity memory corruption vulnerability in TianoCore EDK II, published on 5 Aug 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-2021-28216 in the wild and no public exploit code.\n\nAffected product: TianoCore EDK II. 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-2021-28216/ (Markdown: https://insights.sbomify.com/CVE-2021-28216/index.md)","id":"CVE-2021-28216","markdown":"https://insights.sbomify.com/CVE-2021-28216/index.md","name":"CVE-2021-28216","record":{"aliases":["DEBIAN-CVE-2021-28216","GHSA-6wgv-vj43-rpr5","OESA-2021-1458","UBUNTU-CVE-2021-28216"],"analysis":{"component_type":"hardware_firmware","fix_type":"configuration_change","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"EDK II firmware","requires_auth":"low_privilege","summary":"Attackers can exploit a pointer read from NVRAM in PEI to cause memory corruption, potentially leading to code execution or privilege escalation.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TianoCore","cpe":[{"product":"edk_ii","vendor":"tianocore"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-763","name":"Release of Invalid Pointer or Reference"},{"id":"CWE-587","name":"Assignment of a Fixed Address to a Pointer"}],"description":"BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Memory corruption in EDK II","id":"CVE-2021-28216","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in n/a","id":"CVE-2021-28233"},"packages":[],"prev":{"headline":"Hardcoded credentials in EDK II","id":"CVE-2021-28213"},"products":["EDK II"],"published":"2021-08-05","related":[{"cvss_score":9.1,"headline":"Memory corruption in Extensible Firmware Interface Development Kit (EDK II)","id":"CVE-2018-12178","kev_date_added":null,"published":"2019-03-27"},{"cvss_score":7.8,"headline":"Privilege escalation in Extensible Firmware Interface Development Kit (EDK II)","id":"CVE-2018-12179","kev_date_added":null,"published":"2019-03-27"},{"cvss_score":7.8,"headline":"Privilege escalation in Extensible Firmware Interface Development Kit (EDK II)","id":"CVE-2018-3613","kev_date_added":null,"published":"2019-03-27"},{"cvss_score":6.8,"headline":"Other in Tianocore","id":"CVE-2019-11098","kev_date_added":null,"published":"2021-07-14"},{"cvss_score":6.8,"headline":"Memory corruption in Extensible Firmware Interface Development Kit (EDK II)","id":"CVE-2018-12183","kev_date_added":null,"published":"2019-03-27"},{"cvss_score":6.7,"headline":"Privilege escalation in Extensible Firmware Interface Development Kit (EDK II)","id":"CVE-2018-12182","kev_date_added":null,"published":"2019-03-27"}],"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":"2025-11-03","vendors":["TianoCore"]},"summary":"Attackers can exploit a pointer read from NVRAM in PEI to cause memory corruption, potentially leading to code execution or privilege escalation.","url":"https://insights.sbomify.com/CVE-2021-28216/"}