Bios
CVE-2020-8740
MEDIUM
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
Out of bounds write in Intel BIOS platform sample code for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
AnalysisAI
Out of bounds write in Intel BIOS platform sample code for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Out of bounds write in Intel BIOS platform sample code for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access. Affected products include: Intel Bios, Netapp Aff Bios, Netapp Fas Bios, Netapp Hci Compute Node Bios, Netapp Hci Storage Node Bios.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
Dell BIOS contains an improper input validation vulnerability. Rated high severity (CVSS 8.8), this vulnerability is low
Dell BIOS contains an improper input validation vulnerability. Rated high severity (CVSS 8.8), this vulnerability is low
The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83, M8500t/s, M8600t/s, M900, M93,
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A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker wit
Improper access control in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable
Improper conditions check in Intel BIOS platform sample code for some Intel(R) Processors before may allow a privileged
Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially en
Out of bounds write in BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable
Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially en
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
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External POC / Exploit Code
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