{"answers":{"affected":"It affects 128 products.","exploited":"There is no known exploitation of CVE-2021-21571 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21571 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21571 is a medium-severity vulnerability in Dell Chengming 3990 Firmware, published on 24 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-21571 and fix it if it is affected.\n\nWhat it is: CVE-2021-21571 is a medium-severity vulnerability in Dell Chengming 3990 Firmware, published on 24 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-21571 in the wild and no public exploit code.\n\nAffected product: Dell Chengming 3990 Firmware. 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-2021-21571/ (Markdown: https://insights.sbomify.com/CVE-2021-21571/index.md)","id":"CVE-2021-21571","markdown":"https://insights.sbomify.com/CVE-2021-21571/index.md","name":"CVE-2021-21571","record":{"aliases":["GHSA-g784-x97g-r6ww"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Dell UEFI BIOS","requires_auth":"none","summary":"Remote attackers can bypass certificate validation in Dell BIOS HTTPS features via MITM, causing denial of service and payload tampering.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"dell","cpe":[{"product":"alienware_m15_r6_firmware","vendor":"dell"},{"product":"chengming_3990_firmware","vendor":"dell"},{"product":"chengming_3991_firmware","vendor":"dell"},{"product":"g15_5510_firmware","vendor":"dell"},{"product":"g15_5511_firmware","vendor":"dell"},{"product":"g3_3500_firmware","vendor":"dell"},{"product":"g5_5500_firmware","vendor":"dell"},{"product":"g7_7500_firmware","vendor":"dell"},{"product":"g7_7700_firmware","vendor":"dell"},{"product":"inspiron_14_5418_firmware","vendor":"dell"},{"product":"inspiron_15_5518_firmware","vendor":"dell"},{"product":"inspiron_15_7510_firmware","vendor":"dell"},{"product":"inspiron_3501_firmware","vendor":"dell"},{"product":"inspiron_3880_firmware","vendor":"dell"},{"product":"inspiron_3881_firmware","vendor":"dell"},{"product":"inspiron_3891_firmware","vendor":"dell"},{"product":"inspiron_5300_firmware","vendor":"dell"},{"product":"inspiron_5301_firmware","vendor":"dell"},{"product":"inspiron_5310_firmware","vendor":"dell"},{"product":"inspiron_5400_2-in-1_firmware","vendor":"dell"},{"product":"inspiron_5400_aio_firmware","vendor":"dell"},{"product":"inspiron_5401_aio_firmware","vendor":"dell"},{"product":"inspiron_5401_firmware","vendor":"dell"},{"product":"inspiron_5402_firmware","vendor":"dell"},{"product":"inspiron_5406_2n1_firmware","vendor":"dell"},{"product":"inspiron_5408_firmware","vendor":"dell"},{"product":"inspiron_5409_firmware","vendor":"dell"},{"product":"inspiron_5410_2-in-1_firmware","vendor":"dell"},{"product":"inspiron_5501_firmware","vendor":"dell"},{"product":"inspiron_5502_firmware","vendor":"dell"},{"product":"inspiron_5508_firmware","vendor":"dell"},{"product":"inspiron_5509_firmware","vendor":"dell"},{"product":"inspiron_7300_2-in-1_firmware","vendor":"dell"},{"product":"inspiron_7300_firmware","vendor":"dell"},{"product":"inspiron_7306_2-in-1_firmware","vendor":"dell"},{"product":"inspiron_7400_firmware","vendor":"dell"},{"product":"inspiron_7500_2-in-1_firmware","vendor":"dell"},{"product":"inspiron_7500_firmware","vendor":"dell"},{"product":"inspiron_7501_firmware","vendor":"dell"},{"product":"inspiron_7506_firmware","vendor":"dell"},{"product":"inspiron_7610_firmware","vendor":"dell"},{"product":"inspiron_7700_aio_firmware","vendor":"dell"},{"product":"inspiron_7706_2-in-1_firmware","vendor":"dell"},{"product":"latitude_3120_firmware","vendor":"dell"},{"product":"latitude_3320_firmware","vendor":"dell"},{"product":"latitude_3410_firmware","vendor":"dell"},{"product":"latitude_3420_firmware","vendor":"dell"},{"product":"latitude_3510_firmware","vendor":"dell"},{"product":"latitude_3520_firmware","vendor":"dell"},{"product":"latitude_5310_2-in-1_firmware","vendor":"dell"},{"product":"latitude_5310_firmware","vendor":"dell"},{"product":"latitude_5320_2-in-1_firmware","vendor":"dell"},{"product":"latitude_5320_firmware","vendor":"dell"},{"product":"latitude_5410_firmware","vendor":"dell"},{"product":"latitude_5411_firmware","vendor":"dell"},{"product":"latitude_5420_firmware","vendor":"dell"},{"product":"latitude_5421_firmware","vendor":"dell"},{"product":"latitude_5510_firmware","vendor":"dell"},{"product":"latitude_5511_firmware","vendor":"dell"},{"product":"latitude_5520_firmware","vendor":"dell"},{"product":"latitude_5521_firmware","vendor":"dell"},{"product":"latitude_7210_2-in-1_firmware","vendor":"dell"},{"product":"latitude_7310_firmware","vendor":"dell"},{"product":"latitude_7320_detachable_firmware","vendor":"dell"},{"product":"latitude_7320_firmware","vendor":"dell"},{"product":"latitude_7410_firmware","vendor":"dell"},{"product":"latitude_7420_firmware","vendor":"dell"},{"product":"latitude_7520_firmware","vendor":"dell"},{"product":"latitude_9410_firmware","vendor":"dell"},{"product":"latitude_9420_firmware","vendor":"dell"},{"product":"latitude_9510_firmware","vendor":"dell"},{"product":"latitude_9520_firmware","vendor":"dell"},{"product":"optiplex_3080_firmware","vendor":"dell"},{"product":"optiplex_3090_uff_firmware","vendor":"dell"},{"product":"optiplex_3280_all-in-one_firmware","vendor":"dell"},{"product":"optiplex_5080_firmware","vendor":"dell"},{"product":"optiplex_5090_tower_firmware","vendor":"dell"},{"product":"optiplex_5490_aio_firmware","vendor":"dell"},{"product":"optiplex_7080_firmware","vendor":"dell"},{"product":"optiplex_7090_tower_firmware","vendor":"dell"},{"product":"optiplex_7090_uff_firmware","vendor":"dell"},{"product":"optiplex_7480_all-in-one_firmware","vendor":"dell"},{"product":"optiplex_7490_all-in-one_firmware","vendor":"dell"},{"product":"optiplex_7780_all-in-one_firmware","vendor":"dell"},{"product":"precision_17_m5750_firmware","vendor":"dell"},{"product":"precision_3440_firmware","vendor":"dell"},{"product":"precision_3450_firmware","vendor":"dell"},{"product":"precision_3550_firmware","vendor":"dell"},{"product":"precision_3551_firmware","vendor":"dell"},{"product":"precision_3560_firmware","vendor":"dell"},{"product":"precision_3561_firmware","vendor":"dell"},{"product":"precision_3640_firmware","vendor":"dell"},{"product":"precision_3650_mt_firmware","vendor":"dell"},{"product":"precision_5550_firmware","vendor":"dell"},{"product":"precision_5560_firmware","vendor":"dell"},{"product":"precision_5760_firmware","vendor":"dell"},{"product":"precision_7550_firmware","vendor":"dell"},{"product":"precision_7560_firmware","vendor":"dell"},{"product":"precision_7750_firmware","vendor":"dell"},{"product":"precision_7760_firmware","vendor":"dell"},{"product":"vostro_14_5410_firmware","vendor":"dell"},{"product":"vostro_15_5510_firmware","vendor":"dell"},{"product":"vostro_15_7510_firmware","vendor":"dell"},{"product":"vostro_3400_firmware","vendor":"dell"},{"product":"vostro_3500_firmware","vendor":"dell"},{"product":"vostro_3501_firmware","vendor":"dell"},{"product":"vostro_3681_firmware","vendor":"dell"},{"product":"vostro_3690_firmware","vendor":"dell"},{"product":"vostro_3881_firmware","vendor":"dell"},{"product":"vostro_3888_firmware","vendor":"dell"},{"product":"vostro_3890_firmware","vendor":"dell"},{"product":"vostro_5300_firmware","vendor":"dell"},{"product":"vostro_5301_firmware","vendor":"dell"},{"product":"vostro_5310_firmware","vendor":"dell"},{"product":"vostro_5401_firmware","vendor":"dell"},{"product":"vostro_5402_firmware","vendor":"dell"},{"product":"vostro_5501_firmware","vendor":"dell"},{"product":"vostro_5502_firmware","vendor":"dell"},{"product":"vostro_5880_firmware","vendor":"dell"},{"product":"vostro_5890_firmware","vendor":"dell"},{"product":"vostro_7500_firmware","vendor":"dell"},{"product":"xps_13_2in1_9310_firmware","vendor":"dell"},{"product":"xps_13_9305_firmware","vendor":"dell"},{"product":"xps_13_9310_firmware","vendor":"dell"},{"product":"xps_15_9500_firmware","vendor":"dell"},{"product":"xps_15_9510_firmware","vendor":"dell"},{"product":"xps_17_9700_firmware","vendor":"dell"},{"product":"xps_17_9710_firmware","vendor":"dell"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service and payload tampering.","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":"Security feature bypass in UEFI BIOS https stack","id":"CVE-2021-21571","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"dell:chengming_3990_firmware","products":["dell:chengming_3990_firmware","dell:chengming_3991_firmware","dell:inspiron_3501_firmware","dell:inspiron_3880_firmware","dell:inspiron_3881_firmware","dell:inspiron_3891_firmware","dell:inspiron_5401_firmware","dell:inspiron_7500_firmware","dell:inspiron_7501_firmware","dell:inspiron_7610_firmware","dell:latitude_3120_firmware","dell:latitude_3320_firmware","dell:latitude_3420_firmware","dell:latitude_3520_firmware","dell:latitude_5310_2-in-1_firmware","dell:latitude_5310_firmware","dell:latitude_5320_firmware","dell:latitude_5410_firmware","dell:latitude_5411_firmware","dell:latitude_5420_firmware","dell:latitude_5510_firmware","dell:latitude_5511_firmware","dell:latitude_5520_firmware","dell:latitude_5521_firmware","dell:latitude_7210_2-in-1_firmware","dell:latitude_7310_firmware","dell:latitude_7320_detachable_firmware","dell:latitude_7410_firmware","dell:latitude_9410_firmware","dell:latitude_9420_firmware","dell:latitude_9510_firmware","dell:latitude_9520_firmware","dell:optiplex_3080_firmware","dell:optiplex_5080_firmware","dell:optiplex_7080_firmware","dell:optiplex_7480_all-in-one_firmware","dell:precision_3440_firmware","dell:precision_3450_firmware","dell:precision_3550_firmware","dell:precision_3551_firmware","dell:precision_3560_firmware","dell:precision_3561_firmware","dell:precision_5550_firmware","dell:precision_5760_firmware","dell:precision_7560_firmware","dell:precision_7760_firmware","dell:vostro_3501_firmware","dell:vostro_3681_firmware","dell:vostro_3690_firmware","dell:vostro_3881_firmware","dell:vostro_3888_firmware","dell:vostro_3890_firmware","dell:vostro_5880_firmware","dell:vostro_5890_firmware","dell:vostro_7500_firmware","dell:xps_17_9710_firmware"],"type":"security_feature_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in BIOSConnect","id":"CVE-2021-21572"},"packages":[],"prev":{"headline":"Information disclosure in NetWorker","id":"CVE-2021-21570"},"products":["UEFI BIOS https stack"],"published":"2021-06-24","related":[{"cvss_score":8.2,"headline":"Auth bypass in Dell Client Platform BIOS","id":"CVE-2024-52541","kev_date_added":null,"published":"2025-02-19"},{"cvss_score":7.9,"headline":"Code injection in CPG BIOS","id":"CVE-2022-26861","kev_date_added":null,"published":"2022-09-06"},{"cvss_score":7.5,"headline":"Memory corruption in CPG BIOS","id":"CVE-2022-34403","kev_date_added":null,"published":"2023-02-01"},{"cvss_score":7.5,"headline":"Memory corruption in CPG BIOS","id":"CVE-2022-26860","kev_date_added":null,"published":"2022-09-06"},{"cvss_score":7.2,"headline":"Memory corruption in BIOSConnect","id":"CVE-2021-21572","kev_date_added":null,"published":"2021-06-24"},{"cvss_score":7.2,"headline":"Memory corruption in BIOSConnect","id":"CVE-2021-21573","kev_date_added":null,"published":"2021-06-24"},{"cvss_score":7.2,"headline":"Memory corruption in BIOSConnect","id":"CVE-2021-21574","kev_date_added":null,"published":"2021-06-24"}],"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":"Remote attackers can bypass certificate validation in Dell BIOS HTTPS features via MITM, causing denial of service and payload tampering.","url":"https://insights.sbomify.com/CVE-2021-21571/"}