Is CVE-2021-3786 in the CISA KEV catalog?

No. CVE-2021-3786 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3786?

CVE-2021-3786 has a CVSS v3 base score of 4.4 (MEDIUM).

What is the EPSS score for CVE-2021-3786?

CVE-2021-3786 has an EPSS score of 0.23% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3786?

Upgrade thinkpad 10 firmware to 2021-10-25 or later. Fixes are available for 127 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3786

MEDIUM

4.4

CVSS v3

NVD

Description

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

CWE-20Improper Input Validation

How to fix

Remediation Available

thinkpad 10 firmwareNVD

Affected:< 2021-10-25Fixed in:2021-10-25CVE-2021-3786derived from NVD

thinkpad 11e 3rd gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad 11e 4th gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad 11e yoga gen 6 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad 13 gen 2 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad 25 firmwareNVD

Affected:< n1qet92wFixed in:n1qet92wCVE-2021-3786derived from NVD

thinkpad e14 gen 2 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e14 gen 3 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e15 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e15 gen 2 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e15 gen 3 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e470 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e480 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e490 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e570 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e580 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad e590 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad helix firmwareNVD

Affected:< n17etb6wFixed in:n17etb6wCVE-2021-3786derived from NVD

thinkpad l13 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l13 gen 2 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l13 yoga firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l13 yoga gen 2 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l14 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l15 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l15 gen 2 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l380 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l380 yoga firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l390 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l390 yoga firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad l460 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l470 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l480 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l490 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l560 firmwareNVD

Affected:< n1het92wFixed in:n1het92wCVE-2021-3786derived from NVD

thinkpad l570 firmwareNVD

Affected:< n1xet74wFixed in:n1xet74wCVE-2021-3786derived from NVD

thinkpad l580 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad l590 firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad p14s gen 1 firmwareNVD

Affected:< n2xet32wFixed in:n2xet32wCVE-2021-3786derived from NVD

thinkpad p14s gen 2 firmwareNVD

Affected:< n34et42wFixed in:n34et42wCVE-2021-3786derived from NVD

thinkpad p15 gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad p15s gen 1 firmwareNVD

Affected:< n2xet32wFixed in:n2xet32wCVE-2021-3786derived from NVD

thinkpad p15s gen 2 firmwareNVD

Affected:< n34et42wFixed in:n34et42wCVE-2021-3786derived from NVD

thinkpad p15v gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad p17 gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad p1 firmwareNVD

Affected:< n2eet54wFixed in:n2eet54wCVE-2021-3786derived from NVD

thinkpad p1 gen 2 firmwareNVD

Affected:< n2oet53wFixed in:n2oet53wCVE-2021-3786derived from NVD

thinkpad p1 gen 3 firmwareNVD

Affected:< n2vet33wFixed in:n2vet33wCVE-2021-3786derived from NVD

thinkpad p43s firmwareNVD

Affected:< n2iet96wFixed in:n2iet96wCVE-2021-3786derived from NVD

thinkpad p50 firmwareNVD

Affected:< n1eet92wFixed in:n1eet92wCVE-2021-3786derived from NVD

thinkpad p50s firmwareNVD

Affected:< n1ket52wFixed in:n1ket52wCVE-2021-3786derived from NVD

thinkpad p51 firmwareNVD

Affected:< n1uet82wFixed in:n1uet82wCVE-2021-3786derived from NVD

thinkpad p51s firmwareNVD

Affected:< n1vet57wFixed in:n1vet57wCVE-2021-3786derived from NVD

thinkpad p52 firmwareNVD

Affected:< n2cet60wFixed in:n2cet60wCVE-2021-3786derived from NVD

thinkpad p52s firmwareNVD

Affected:< n27et43wFixed in:n27et43wCVE-2021-3786derived from NVD

thinkpad p53 firmwareNVD

Affected:< n2net47wFixed in:n2net47wCVE-2021-3786derived from NVD

thinkpad p53s firmwareNVD

Affected:< n2iet96wFixed in:n2iet96wCVE-2021-3786derived from NVD

thinkpad p70 firmwareNVD

Affected:< n1detb2wFixed in:n1detb2wCVE-2021-3786derived from NVD

thinkpad p71 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad p72 firmwareNVD

Affected:< n2cet60wFixed in:n2cet60wCVE-2021-3786derived from NVD

thinkpad p73 firmwareNVD

Affected:< n2net47wFixed in:n2net47wCVE-2021-3786derived from NVD

thinkpad s2 gen 6 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad s2 yoga gen 6 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad s540 firmwareNVD

Affected:< 2021-10-25Fixed in:2021-10-25CVE-2021-3786derived from NVD

thinkpad s5 2nd gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad t14 gen 1 firmwareNVD

Affected:< n2xet32wFixed in:n2xet32wCVE-2021-3786derived from NVD

thinkpad t14 gen 2 firmwareNVD

Affected:< n34et42wFixed in:n34et42wCVE-2021-3786derived from NVD

thinkpad t14s firmwareNVD

Affected:< 2021-10-15Fixed in:2021-10-15CVE-2021-3786derived from NVD

thinkpad t14s gen 2 firmwareNVD

Affected:< n35et41wFixed in:n35et41wCVE-2021-3786derived from NVD

thinkpad t15 firmwareNVD

Affected:< n2xet32wFixed in:n2xet32wCVE-2021-3786derived from NVD

thinkpad t15 gen 2 firmwareNVD

Affected:< n34et42wFixed in:n34et42wCVE-2021-3786derived from NVD

thinkpad t15g gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad t15p gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad t440p firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad t460 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad t460p firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad t460s firmwareNVD

Affected:< n1cet84wFixed in:n1cet84wCVE-2021-3786derived from NVD

thinkpad t470 firmwareNVD

Affected:< n1qet92wFixed in:n1qet92wCVE-2021-3786derived from NVD

thinkpad t470p firmwareNVD

Affected:< r0fet55wFixed in:r0fet55wCVE-2021-3786derived from NVD

thinkpad t470s firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad t480 firmwareNVD

Affected:< n24et65wFixed in:n24et65wCVE-2021-3786derived from NVD

thinkpad t480s firmwareNVD

Affected:< n22et70wFixed in:n22et70wCVE-2021-3786derived from NVD

thinkpad t490 firmwareNVD

Affected:< n2iet96wFixed in:n2iet96wCVE-2021-3786derived from NVD

thinkpad t490s firmwareNVD

Affected:< n2iet96wFixed in:n2iet96wCVE-2021-3786derived from NVD

thinkpad t550 firmwareNVD

Affected:< n11et54wFixed in:n11et54wCVE-2021-3786derived from NVD

thinkpad t560 firmwareNVD

Affected:< n1ket52wFixed in:n1ket52wCVE-2021-3786derived from NVD

thinkpad t570 firmwareNVD

Affected:< n1vet57wFixed in:n1vet57wCVE-2021-3786derived from NVD

thinkpad t580 firmwareNVD

Affected:< n27et43wFixed in:n27et43wCVE-2021-3786derived from NVD

thinkpad t590 firmwareNVD

Affected:< n2iet96wFixed in:n2iet96wCVE-2021-3786derived from NVD

thinkpad w550s firmwareNVD

Affected:< n11et54wFixed in:n11et54wCVE-2021-3786derived from NVD

thinkpad x12 detachable gen 1 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad x13 gen 1 firmwareNVD

Affected:< n2yet31wFixed in:n2yet31wCVE-2021-3786derived from NVD

thinkpad x13 gen 2 firmwareNVD

Affected:< n35et41wFixed in:n35et41wCVE-2021-3786derived from NVD

thinkpad x13 yoga gen 1 firmwareNVD

Affected:< n2uet56wFixed in:n2uet56wCVE-2021-3786derived from NVD

thinkpad x13 yoga gen 2 firmwareNVD

Affected:< n39et47wFixed in:n39et47wCVE-2021-3786derived from NVD

thinkpad x1 carbon 3rd gen firmwareNVD

Affected:< n14et56wFixed in:n14et56wCVE-2021-3786derived from NVD

thinkpad x1 carbon 4th gen firmwareNVD

Affected:< n1fet76wFixed in:n1fet76wCVE-2021-3786derived from NVD

thinkpad x1 carbon 5th gen kabylake firmwareNVD

Affected:< n1met66wFixed in:n1met66wCVE-2021-3786derived from NVD

thinkpad x1 carbon 5th gen skylake firmwareNVD

Affected:< n1met66wFixed in:n1met66wCVE-2021-3786derived from NVD

thinkpad x1 carbon gen 6 firmwareNVD

Affected:< n23et78wFixed in:n23et78wCVE-2021-3786derived from NVD

thinkpad x1 carbon gen 7 firmwareNVD

Affected:< n2qet42wFixed in:n2qet42wCVE-2021-3786derived from NVD

thinkpad x1 carbon gen 8 firmwareNVD

Affected:< n2qet42wFixed in:n2qet42wCVE-2021-3786derived from NVD

thinkpad x1 extreme 2nd firmwareNVD

Affected:< n2oet53wFixed in:n2oet53wCVE-2021-3786derived from NVD

thinkpad x1 extreme firmwareNVD

Affected:< n2eet54wFixed in:n2eet54wCVE-2021-3786derived from NVD

thinkpad x1 extreme gen 3 firmwareNVD

Affected:< n2vet33wFixed in:n2vet33wCVE-2021-3786derived from NVD

thinkpad x1 fold gen 1 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad x1 nano gen 1 firmwareNVD

Affected:< n2tet67wFixed in:n2tet67wCVE-2021-3786derived from NVD

thinkpad x1 tablet firmwareNVD

Affected:< n1let92wFixed in:n1let92wCVE-2021-3786derived from NVD

thinkpad x1 tablet gen 2 firmwareNVD

Affected:< n1oet56wFixed in:n1oet56wCVE-2021-3786derived from NVD

thinkpad x1 tablet gen 3 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad x1 titanium firmwareNVD

Affected:< n2met51wFixed in:n2met51wCVE-2021-3786derived from NVD

thinkpad x1 yoga 1st gen firmwareNVD

Affected:< n1fet76wFixed in:n1fet76wCVE-2021-3786derived from NVD

thinkpad x1 yoga 3rd gen firmwareNVD

Affected:< n25et57wFixed in:n25et57wCVE-2021-3786derived from NVD

thinkpad x1 yoga 4th gen firmwareNVD

Affected:< n2qet42wFixed in:n2qet42wCVE-2021-3786derived from NVD

thinkpad x1 yoga gen 5 firmwareNVD

Affected:< n2wet30wFixed in:n2wet30wCVE-2021-3786derived from NVD

thinkpad x250 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad x260 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad x270 firmwareNVD

Affected:< 2021-10-29Fixed in:2021-10-29CVE-2021-3786derived from NVD

thinkpad x280 firmwareNVD

Affected:< n20et58wFixed in:n20et58wCVE-2021-3786derived from NVD

thinkpad x380 yoga firmwareNVD

Affected:< 2020-10-31Fixed in:2020-10-31CVE-2021-3786derived from NVD

thinkpad x390 firmwareNVD

Affected:< n2jet96wFixed in:n2jet96wCVE-2021-3786derived from NVD

thinkpad x390 yoga firmwareNVD

Affected:< n2let87wFixed in:n2let87wCVE-2021-3786derived from NVD

thinkpad yoga 11e 3rd gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad yoga 11e 4th gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad yoga 11e 5th gen firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

thinkpad yoga 15 firmwareNVD

Affected:< n19et66wFixed in:n19et66wCVE-2021-3786derived from NVD

thinkpad yoga 260 firmwareNVD

Affected:< 2021-10-25Fixed in:2021-10-25CVE-2021-3786derived from NVD

thinkpad yoga 370 firmwareNVD

Affected:< 2021-10-31Fixed in:2021-10-31CVE-2021-3786derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.23%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Patch1

support.lenovo.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.