{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2021-21555 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21555 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21555 is a medium-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, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-21555 and fix it if it is affected.\n\nWhat it is: CVE-2021-21555 is a medium-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, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-21555 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-2021-21555/ (Markdown: https://insights.sbomify.com/CVE-2021-21555/index.md)","id":"CVE-2021-21555","markdown":"https://insights.sbomify.com/CVE-2021-21555/index.md","name":"CVE-2021-21555","record":{"aliases":["GHSA-pcxr-3rxm-vvmx"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Dell PowerEdge BIOS","requires_auth":"high_privilege","summary":"A heap-based buffer overflow in Dell PowerEdge BIOS allows local high-privilege attackers to execute arbitrary code, cause denial of service, or disclose information.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"dell","cpe":[{"product":"poweredge_mx740c_firmware","vendor":"dell"},{"product":"poweredge_mx840c_firmware","vendor":"dell"},{"product":"poweredge_r640_firmware","vendor":"dell"},{"product":"poweredge_r740_firmware","vendor":"dell"},{"product":"poweredge_r740xd_firmware","vendor":"dell"},{"product":"poweredge_r840_firmware","vendor":"dell"},{"product":"poweredge_r940_firmware","vendor":"dell"},{"product":"poweredge_r940xa_firmware","vendor":"dell"},{"product":"poweredge_t640_firmware","vendor":"dell"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a heap-based buffer overflow vulnerability in systems with NVDIMM-N installed. 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 UEFI or BIOS Preboot Environment.","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-2021-21555","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 PowerEdge BIOS Intel 15G","id":"CVE-2021-21556"},"packages":[],"prev":{"headline":"Memory corruption in PowerEdge BIOS Intel 15G","id":"CVE-2021-21554"},"products":["PowerEdge BIOS Intel 15G"],"published":"2021-06-14","related":[{"cvss_score":6.1,"headline":"Memory corruption in PowerEdge BIOS Intel 15G","id":"CVE-2021-21554","kev_date_added":null,"published":"2021-06-14"},{"cvss_score":6.1,"headline":"Memory corruption in PowerEdge BIOS Intel 15G","id":"CVE-2021-21556","kev_date_added":null,"published":"2021-06-14"}],"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 heap-based buffer overflow in Dell PowerEdge BIOS allows local high-privilege attackers to execute arbitrary code, cause denial of service, or disclose information.","url":"https://insights.sbomify.com/CVE-2021-21555/"}