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Vulnerability record · CVE-2020-8671 · published 5 October 2020

CVE-2020-8671: Intel bios vulnerability

Intel · Bios

Insufficient control flow management in BIOS firmware 8th, 9th Generation Intel(R) Core(TM) Processors and Intel(R) Celeron(R) Processor 4000 Series may allow an authenticated user to potentially enable information disclosure via local access.

5.5 CVSS 3.1 Medium EPSS 0.33% · top 76.8%
5.5CVSS 3.1 base score, v2 2.1
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Insufficient control flow management in BIOS firmware 8th, 9th Generation Intel(R) Core(TM) Processors and Intel(R) Celeron(R) Processor 4000 Series may allow an authenticated user to potentially enable information disclosure via local access.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00356.html Vendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00356.html Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.0CVE-2019-14557Intel bios classic buffer overflow vulnerabilityBuffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may all…EPSS 0.55%7.8CVE-2020-12360Intel bios out-of-bounds read vulnerabilityOut of bounds read in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via loc…EPSS 0.35%7.8CVE-2020-8672Intel bios out-of-bounds read vulnerabilityOut of bound read in BIOS firmware for 8th, 9th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 Series Processors may allow an unaut…EPSS 0.34%7.8CVE-2020-8739Intel bios vulnerabilityUse of potentially dangerous function in Intel BIOS platform sample code for some Intel(R) Processors may allow an authenticated user to potentially …EPSS 0.42%7.8CVE-2018-3612Intel bios improper input validation vulnerabilityIntel NUC kits with insufficient input validation in system firmware, potentially allows a local attacker to elevate privileges to System Management …EPSS 0.32%6.9CVE-2008-7096Intel bios permissions and access controls vulnerabilityIntel Desktop and Intel Mobile Boards with BIOS firmware DQ35JO, DQ35MP, DP35DP, DG33FB, DG33BU, DG33TL, MGM965TW, D945GCPE, and DX38BT allows local …EPSS 0.32%6.8CVE-2020-12359Intel bios vulnerabilityInsufficient control flow management in the firmware for some Intel(R) Processors may allow an unauthenticated user to potentially enable escalation …EPSS 0.32%6.7CVE-2020-8700Intel bios improper input validation vulnerabilityImproper input validation in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via …EPSS 0.30%

Source: NIST National Vulnerability Database (record CVE-2020-8671), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.