{"answers":{"affected":"It affects 121 products.","exploited":"There is no known exploitation of CVE-2021-1931 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-1931 is a medium-severity memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 13 Jul 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-2021-1931 and fix it if it is affected.\n\nWhat it is: CVE-2021-1931 is a medium-severity memory corruption vulnerability in Qualcomm Aqt1000 Firmware, published on 13 Jul 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-2021-1931 in the wild and no public exploit code.\n\nAffected product: Qualcomm Aqt1000 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-2021-1931/ (Markdown: https://insights.sbomify.com/CVE-2021-1931/index.md)","id":"CVE-2021-1931","markdown":"https://insights.sbomify.com/CVE-2021-1931/index.md","name":"CVE-2021-1931","record":{"aliases":["2820093","A-179057550","ASB-A-179057550","GHSA-76g8-78xr-pq89"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Qualcomm Snapdragon firmware","requires_auth":"high_privilege","summary":"A buffer overflow in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via fast boot commands.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"qualcomm","cpe":[{"product":"aqt1000_firmware","vendor":"qualcomm"},{"product":"ar8031_firmware","vendor":"qualcomm"},{"product":"ar8035_firmware","vendor":"qualcomm"},{"product":"csra6620_firmware","vendor":"qualcomm"},{"product":"csra6640_firmware","vendor":"qualcomm"},{"product":"csrb31024_firmware","vendor":"qualcomm"},{"product":"fsm10055_firmware","vendor":"qualcomm"},{"product":"fsm10056_firmware","vendor":"qualcomm"},{"product":"qca6174a_firmware","vendor":"qualcomm"},{"product":"qca6310_firmware","vendor":"qualcomm"},{"product":"qca6320_firmware","vendor":"qualcomm"},{"product":"qca6335_firmware","vendor":"qualcomm"},{"product":"qca6390_firmware","vendor":"qualcomm"},{"product":"qca6391_firmware","vendor":"qualcomm"},{"product":"qca6420_firmware","vendor":"qualcomm"},{"product":"qca6421_firmware","vendor":"qualcomm"},{"product":"qca6426_firmware","vendor":"qualcomm"},{"product":"qca6430_firmware","vendor":"qualcomm"},{"product":"qca6431_firmware","vendor":"qualcomm"},{"product":"qca6436_firmware","vendor":"qualcomm"},{"product":"qca6564_firmware","vendor":"qualcomm"},{"product":"qca6564a_firmware","vendor":"qualcomm"},{"product":"qca6564au_firmware","vendor":"qualcomm"},{"product":"qca6574_firmware","vendor":"qualcomm"},{"product":"qca6574a_firmware","vendor":"qualcomm"},{"product":"qca6574au_firmware","vendor":"qualcomm"},{"product":"qca6584au_firmware","vendor":"qualcomm"},{"product":"qca6595au_firmware","vendor":"qualcomm"},{"product":"qca6696_firmware","vendor":"qualcomm"},{"product":"qca8337_firmware","vendor":"qualcomm"},{"product":"qca9377_firmware","vendor":"qualcomm"},{"product":"qcm2290_firmware","vendor":"qualcomm"},{"product":"qcm4290_firmware","vendor":"qualcomm"},{"product":"qcm6125_firmware","vendor":"qualcomm"},{"product":"qcs2290_firmware","vendor":"qualcomm"},{"product":"qcs405_firmware","vendor":"qualcomm"},{"product":"qcs410_firmware","vendor":"qualcomm"},{"product":"qcs4290_firmware","vendor":"qualcomm"},{"product":"qcs603_firmware","vendor":"qualcomm"},{"product":"qcs605_firmware","vendor":"qualcomm"},{"product":"qcs610_firmware","vendor":"qualcomm"},{"product":"qcs6125_firmware","vendor":"qualcomm"},{"product":"sa415m_firmware","vendor":"qualcomm"},{"product":"sa6145p_firmware","vendor":"qualcomm"},{"product":"sa6150p_firmware","vendor":"qualcomm"},{"product":"sa6155_firmware","vendor":"qualcomm"},{"product":"sa6155p_firmware","vendor":"qualcomm"},{"product":"sa8145p_firmware","vendor":"qualcomm"},{"product":"sa8150p_firmware","vendor":"qualcomm"},{"product":"sa8155_firmware","vendor":"qualcomm"},{"product":"sa8155p_firmware","vendor":"qualcomm"},{"product":"sa8195p_firmware","vendor":"qualcomm"},{"product":"sd460_firmware","vendor":"qualcomm"},{"product":"sd480_firmware","vendor":"qualcomm"},{"product":"sd660_firmware","vendor":"qualcomm"},{"product":"sd662_firmware","vendor":"qualcomm"},{"product":"sd665_firmware","vendor":"qualcomm"},{"product":"sd670_firmware","vendor":"qualcomm"},{"product":"sd675_firmware","vendor":"qualcomm"},{"product":"sd678_firmware","vendor":"qualcomm"},{"product":"sd690_5g_firmware","vendor":"qualcomm"},{"product":"sd710_firmware","vendor":"qualcomm"},{"product":"sd720g_firmware","vendor":"qualcomm"},{"product":"sd730_firmware","vendor":"qualcomm"},{"product":"sd750g_firmware","vendor":"qualcomm"},{"product":"sd765_firmware","vendor":"qualcomm"},{"product":"sd765g_firmware","vendor":"qualcomm"},{"product":"sd768g_firmware","vendor":"qualcomm"},{"product":"sd778g_firmware","vendor":"qualcomm"},{"product":"sd780g_firmware","vendor":"qualcomm"},{"product":"sd835_firmware","vendor":"qualcomm"},{"product":"sd845_firmware","vendor":"qualcomm"},{"product":"sd855_firmware","vendor":"qualcomm"},{"product":"sd865_5g_firmware","vendor":"qualcomm"},{"product":"sd870_firmware","vendor":"qualcomm"},{"product":"sd888_5g_firmware","vendor":"qualcomm"},{"product":"sd888_firmware","vendor":"qualcomm"},{"product":"sd_636_firmware","vendor":"qualcomm"},{"product":"sd_675_firmware","vendor":"qualcomm"},{"product":"sd_8c_firmware","vendor":"qualcomm"},{"product":"sd_8cx_firmware","vendor":"qualcomm"},{"product":"sdm630_firmware","vendor":"qualcomm"},{"product":"sdm830_firmware","vendor":"qualcomm"},{"product":"sdx24_firmware","vendor":"qualcomm"},{"product":"sdx50m_firmware","vendor":"qualcomm"},{"product":"sdx55_firmware","vendor":"qualcomm"},{"product":"sdx55m_firmware","vendor":"qualcomm"},{"product":"sdxr1_firmware","vendor":"qualcomm"},{"product":"sdxr2_5g_firmware","vendor":"qualcomm"},{"product":"sm4125_firmware","vendor":"qualcomm"},{"product":"sm6250_firmware","vendor":"qualcomm"},{"product":"sm6250p_firmware","vendor":"qualcomm"},{"product":"sm7250p_firmware","vendor":"qualcomm"},{"product":"sm7315_firmware","vendor":"qualcomm"},{"product":"sm7325p_firmware","vendor":"qualcomm"},{"product":"wcd9326_firmware","vendor":"qualcom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Copy without Checking Size of Input"}],"description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2025-05-04","github_poc":4,"max_poc_stars":219,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-31T05:37:56Z","kind":"github_poc","ref":"https://github.com/starseed12345/QuestStack","stars":219,"title":"Unlock the Meta Quest 1 bootloader and gain root access using GhostLock + CVE-2021-1931."},{"date":"2025-05-04T14:04:45Z","kind":"github_poc","ref":"https://github.com/FakeShell/CVE-2021-1931-BBRY-KEY2","stars":8,"title":"proof of concept CVE-2021-1931 exploit for the blackberry key2 (le) that allows to flash unsigned images temporarily"},{"date":"2026-07-02T08:03:35Z","kind":"github_poc","ref":"https://github.com/aomsin2526/xperia_5_bl_unlocker_poc","stars":6,"title":"My take on unlocking Xperia 5 SO-01M for p42 bootloader using CVE-2021-1931"},{"date":"2026-10-05T17:01:34Z","kind":"github_poc","ref":"https://github.com/stanw47/Blackberry-Key2-Research","stars":1,"title":"BlackBerry KEY2 (BBF100-6) bootloader unlock (CVE-2021-1931), unlock-tool RE, recon, and LineageOS research"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","id":"CVE-2021-1931","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"qualcomm:aqt1000_firmware","products":["qualcomm:aqt1000_firmware","qualcomm:ar8031_firmware","qualcomm:ar8035_firmware","qualcomm:csra6620_firmware","qualcomm:csra6640_firmware","qualcomm:csrb31024_firmware","qualcomm:fsm10055_firmware","qualcomm:fsm10056_firmware","qualcomm:qca6174a_firmware","qualcomm:qca6310_firmware","qualcomm:qca6320_firmware","qualcomm:qca6335_firmware","qualcomm:qca6390_firmware","qualcomm:qca6391_firmware","qualcomm:qca6420_firmware","qualcomm:qca6421_firmware","qualcomm:qca6426_firmware","qualcomm:qca6430_firmware","qualcomm:qca6431_firmware","qualcomm:qca6436_firmware","qualcomm:qca6564_firmware","qualcomm:qca6564a_firmware","qualcomm:qca6564au_firmware","qualcomm:qca6574_firmware","qualcomm:qca6574a_firmware","qualcomm:qca6574au_firmware","qualcomm:qca6584au_firmware","qualcomm:qca6595au_firmware","qualcomm:qca6696_firmware","qualcomm:qca8337_firmware","qualcomm:qca9377_firmware","qualcomm:qcm2290_firmware","qualcomm:qcm4290_firmware","qualcomm:qcm6125_firmware","qualcomm:qcs2290_firmware","qualcomm:qcs405_firmware","qualcomm:qcs410_firmware","qualcomm:qcs4290_firmware","qualcomm:qcs603_firmware","qualcomm:qcs605_firmware","qualcomm:qcs610_firmware","qualcomm:qcs6125_firmware","qualcomm:sa415m_firmware","qualcomm:sa6145p_firmware","qualcomm:sa6150p_firmware","qualcomm:sa6155_firmware","qualcomm:sa6155p_firmware","qualcomm:sa8145p_firmware","qualcomm:sa8150p_firmware","qualcomm:sa8155_firmware","qualcomm:sa8155p_firmware","qualcomm:sa8195p_firmware","qualcomm:sd460_firmware","qualcomm:sd480_firmware","qualcomm:sd660_firmware","qualcomm:sd662_firmware","qualcomm:sd665_firmware","qualcomm:sd670_firmware","qualcomm:sd675_firmware","qualcomm:sd678_firmware","qualcomm:sd690_5g_firmware","qualcomm:sd710_firmware","qualcomm:sd720g_firmware","qualcomm:sd730_firmware","qualcomm:sd750g_firmware","qualcomm:sd765_firmware","qualcomm:sd765g_firmware","qualcomm:sd768g_firmware","qualcomm:sd778g_firmware","qualcomm:sd780g_firmware","qualcomm:sd835_firmware","qualcomm:sd845_firmware","qualcomm:sd855_firmware","qualcomm:sd865_5g_firmware","qualcomm:sd870_firmware","qualcomm:sd888_5g_firmware","qualcomm:sd888_firmware","qualcomm:sd_636_firmware","qualcomm:sd_675_firmware","qualcomm:sd_8c_firmware","qualcomm:sd_8cx_firmware","qualcomm:sdm630_firmware","qualcomm:sdm830_firmware","qualcomm:sdx24_firmware","qualcomm:sdx50m_firmware","qualcomm:sdx55_firmware","qualcomm:sdx55m_firmware","qualcomm:sdxr1_firmware","qualcomm:sdxr2_5g_firmware","qualcomm:sm4125_firmware","qualcomm:sm6250_firmware","qualcomm:sm6250p_firmware","qualcomm:sm7250p_firmware","qualcomm:sm7315_firmware","qualcomm:sm7325p_firmware","qualcomm:wcd9326_firmware","qualcomm:wcd9335_firmware","qualcomm:wcd9340_firmware","qualcomm:wcd9341_firmware","qualcomm:wcd9370_firmware","qualcomm:wcd9371_firmware","qualcomm:wcd9375_firmware","qualcomm:wcd9380_firmware","qualcomm:wcd9385_firmware","qualcomm:wcn3910_firmware","qualcomm:wcn3950_firmware","qualcomm:wcn3980_firmware","qualcomm:wcn3988_firmware","qualcomm:wcn3990_firmware","qualcomm:wcn3991_firmware","qualcomm:wcn3998_firmware","qualcomm:wcn3999_firmware","qualcomm:wcn6740_firmware","qualcomm:wcn6750_firmware","qualcomm:wcn6850_firmware","qualcomm:wcn6851_firmware","qualcomm:wcn6856_firmware","qualcomm:wsa8810_firmware","qualcomm:wsa8815_firmware","qualcomm:wsa8830_firmware","qualcomm:wsa8835_firmware"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking","id":"CVE-2021-1932"},"packages":[],"prev":{"headline":"Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile","id":"CVE-2021-1930"},"products":["Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music"],"published":"2021-07-13","related":[{"cvss_score":8.6,"headline":"Qualcomm Multiple Chipsets Incorrect Authorization","id":"CVE-2025-21479","kev_date_added":"2025-06-03","published":"2025-06-03"},{"cvss_score":8.6,"headline":"Qualcomm Multiple Chipsets Incorrect Authorization","id":"CVE-2025-21480","kev_date_added":"2025-06-03","published":"2025-06-03"},{"cvss_score":9.8,"headline":"Buffer Copy Without Checking Size of Input in QESL","id":"CVE-2023-28562","kev_date_added":null,"published":"2023-09-05"},{"cvss_score":9.8,"headline":"Buffer copy without checking size of input in WLAN Firmware","id":"CVE-2022-40514","kev_date_added":null,"published":"2023-02-09"},{"cvss_score":9.8,"headline":"Memory corruption in Snapdragon Connectivity, Snapdragon Mobile","id":"CVE-2022-22096","kev_date_added":null,"published":"2022-09-02"},{"cvss_score":9.8,"headline":"Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","id":"CVE-2021-35081","kev_date_added":null,"published":"2022-06-14"},{"cvss_score":9.8,"headline":"Memory corruption in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity","id":"CVE-2021-30321","kev_date_added":null,"published":"2021-11-12"}],"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":["Qualcomm, Inc."]},"summary":"A buffer overflow in Qualcomm Snapdragon firmware allows attackers to execute arbitrary code or escalate privileges via fast boot commands.","url":"https://insights.sbomify.com/CVE-2021-1931/"}