{"cve":"CVE-2021-3843","nvd":{"published":"2021-11-12T22:15:08.580","modified":"2026-06-17T04:05:52.743","status":"Modified","description":"A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.7},"cwes":["CWE-20"],"references":["https://support.lenovo.com/us/en/product_security/LEN-72619","https://support.lenovo.com/us/en/product_security/LEN-72619"],"products":["lenovo:thinkpad_11e_3rd_gen_firmware","lenovo:thinkpad_11e_4th_gen_celeron_firmware","lenovo:thinkpad_11e_4th_gen_i3_firmware","lenovo:thinkpad_11e_4th_gen_i5_firmware","lenovo:thinkpad_11e_4th_gen_i7_firmware","lenovo:thinkpad_11e_5th_gen_firmware","lenovo:thinkpad_11e_yoga_gen_6_firmware","lenovo:thinkpad_13_gen_2_firmware","lenovo:thinkpad_l13_firmware","lenovo:thinkpad_l13_gen_2_firmware","lenovo:thinkpad_l13_yoga_firmware","lenovo:thinkpad_l13_yoga_gen_2_firmware","lenovo:thinkpad_l14_firmware","lenovo:thinkpad_l14_gen_1_firmware","lenovo:thinkpad_l15_firmware","lenovo:thinkpad_l15_gen_1_firmware","lenovo:thinkpad_l380_firmware","lenovo:thinkpad_l380_yoga_firmware","lenovo:thinkpad_l390_firmware","lenovo:thinkpad_l390_yoga_firmware","lenovo:thinkpad_s2_gen_6_firmware","lenovo:thinkpad_s2_yoga_gen_6_firmware","lenovo:thinkpad_s5_2nd_gen_firmware","lenovo:thinkpad_t460_firmware","lenovo:thinkpad_x12_detachable_gen_1_firmware","lenovo:thinkpad_x1_fold_gen_1_firmware","lenovo:thinkpad_x260_firmware","lenovo:thinkpad_x380_yoga_firmware","lenovo:thinkpad_x390_yoga_firmware"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-3843","score":0.00279,"percentile":0.20385,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}