{"answers":{"affected":"It affects 31 products.","exploited":"There is no known exploitation of CVE-2021-21557 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21557 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21557 is a high-severity memory corruption vulnerability in Dell PowerEdge BIOS Intel 15G, published on 14 Jun 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-2021-21557 and fix it if it is affected.\n\nWhat it is: CVE-2021-21557 is a high-severity memory corruption vulnerability in Dell PowerEdge BIOS Intel 15G, published on 14 Jun 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-2021-21557 in the wild and no public exploit code.\n\nAffected product: Dell PowerEdge BIOS Intel 15G. 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-2021-21557/ (Markdown: https://insights.sbomify.com/CVE-2021-21557/index.md)","id":"CVE-2021-21557","markdown":"https://insights.sbomify.com/CVE-2021-21557/index.md","name":"CVE-2021-21557","record":{"aliases":["GHSA-66g6-48gr-pwpc"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Dell PowerEdge BIOS","requires_auth":"high_privilege","summary":"A local high-privilege attacker can exploit an out-of-bounds array access in Dell PowerEdge BIOS to cause denial of service, execute arbitrary code, or disclose information.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"dell","cpe":[{"product":"poweredge_c4140_firmware","vendor":"dell"},{"product":"poweredge_c6420_firmware","vendor":"dell"},{"product":"poweredge_c6525_firmware","vendor":"dell"},{"product":"poweredge_fc640_firmware","vendor":"dell"},{"product":"poweredge_m640_firmware","vendor":"dell"},{"product":"poweredge_m640p_firmware","vendor":"dell"},{"product":"poweredge_mx740c_firmware","vendor":"dell"},{"product":"poweredge_mx840c_firmware","vendor":"dell"},{"product":"poweredge_r240_firmware","vendor":"dell"},{"product":"poweredge_r340_firmware","vendor":"dell"},{"product":"poweredge_r440_firmware","vendor":"dell"},{"product":"poweredge_r540_firmware","vendor":"dell"},{"product":"poweredge_r640_firmware","vendor":"dell"},{"product":"poweredge_r6415_firmware","vendor":"dell"},{"product":"poweredge_r6515_firmware","vendor":"dell"},{"product":"poweredge_r6525_firmware","vendor":"dell"},{"product":"poweredge_r740_firmware","vendor":"dell"},{"product":"poweredge_r740xd2_firmware","vendor":"dell"},{"product":"poweredge_r740xd_firmware","vendor":"dell"},{"product":"poweredge_r7415_firmware","vendor":"dell"},{"product":"poweredge_r7425_firmware","vendor":"dell"},{"product":"poweredge_r7515_firmware","vendor":"dell"},{"product":"poweredge_r7525_firmware","vendor":"dell"},{"product":"poweredge_r840_firmware","vendor":"dell"},{"product":"poweredge_r940_firmware","vendor":"dell"},{"product":"poweredge_r940xa_firmware","vendor":"dell"},{"product":"poweredge_t140_firmware","vendor":"dell"},{"product":"poweredge_t340_firmware","vendor":"dell"},{"product":"poweredge_t440_firmware","vendor":"dell"},{"product":"poweredge_t640_firmware","vendor":"dell"},{"product":"poweredge_xr2_firmware","vendor":"dell"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of service, arbitrary code execution, or information disclosure in System Management Mode.","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":"Memory corruption in PowerEdge BIOS Intel 15G","id":"CVE-2021-21557","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":"Information disclosure in NetWorker","id":"CVE-2021-21558"},"packages":[],"prev":{"headline":"Memory corruption in PowerEdge BIOS Intel 15G","id":"CVE-2021-21556"},"products":["PowerEdge BIOS Intel 15G"],"published":"2021-06-14","related":[],"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":["Dell"]},"summary":"A local high-privilege attacker can exploit an out-of-bounds array access in Dell PowerEdge BIOS to cause denial of service, execute arbitrary code, or disclose information.","url":"https://insights.sbomify.com/CVE-2021-21557/"}