Headline

CVE-2021-33086: INTEL-SA-00567

Out-of-bounds write in firmware for some Intel® NUCs may allow an authenticated user to potentially enable denial of service via local access.

3 years ago

CVE

Open in Source

#vulnerability #web #ios #windows #dos

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Intel® NUC Firmware Advisory

**Summary: **

A potential security vulnerability in some Intel® NUCs may allow denial of service. Intel is releasing firmware updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2021-33086

Description: Out-of-bounds write in firmware for some Intel® NUCs may allow an authenticated user to potentially enable denial of service via local access.

CVSS Base Score: 6.3 Medium

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

**Affected Products:
**

Product

BIOS Download link

Intel® NUC M15 Laptop Kit: LAPBC510, LAPBC710

BCTGL357.0064

Intel® NUC 11 Compute Element: CM11EBC4W, CM11EBi38W, CM11EBi58W, CM11EBi716W

EBTGL357.0056

Intel® NUC 11 Performance kit: NUC11PAHi3, NUC11PAHi5, NUC11PAHi7, NUC11PAKi3, NUC11PAKi5, NUC11PAKi7

Intel® NUC 11 Performance Mini PC - NUC11PAQi50WA, NUC11PAQi70QA

PATGL357.0040

Intel® NUC 11 Pro Board: NUC11TNBi3, NUC11TNBi5, NUC11TNBi7

Intel® NUC 11 Pro Kit: NUC11TNHi3, NUC11TNHi30L, NUC11TNHi30P, NUC11TNHi5, NUC11TNHi50L, NUC11TNHi50W, NUC11TNHi7, NUC11TNHi70L, NUC11TNHi70Q, NUC11TNKi3, NUC11TNKi5, NUC11TNKi7

TNTGL357.0057

Intel® NUC 11 Enthusiast Kit - NUC11PHKi7C

Intel® NUC 11 Enthusiast Mini PC - NUC11PHKi7CAA

PHTGL579.0062

Intel® NUC 10 Performance kit: NUC10i3FNH, NUC10i3FNHF, NUC10i3FNK, NUC10i5FNH, NUC10i5FNHF, NUC10i5FNHJ, NUC10i5FNK, NUC10i5FNKP, NUC10i7FNH, NUC10i7FNHC, NUC10i7FNK, NUC10i7FNKP, NUC10i3FNHFA, NUC10i3FNHJA, NUC10i5FNHCA, NUC10i5FNHJA, NUC10i5FNKPA, NUC10i7FNHAA, NUC10i7FNHJA, NUC10i7FNKPA

FNCML.0052

Intel® NUC 9 Pro Compute Element: NUC9V7QNB, NUC9VXQNB

Intel® NUC 9 Pro Kit: NUC9V7QNX, NUC9VXQNX

QNCFLX70.0063

Intel® NUC 8 Business, a Mini PC with Windows 10 - NUC8i7HNKQC

Intel® NUC 8 Enthusiast, a Mini PC with Windows 10: NUC8i7HVKVA, NUC8i7HVKVAW

Intel® NUC Kit: NUC8i7HNK, NUC8i7HVK

HNKBLi70.86A.0067

Intel® NUC 8 Enthusiast, a Mini PC with Windows 10: NUC8i7BEHGA, NUC8i7BEKQA

Intel® NUC 8 Home - a Mini PC with Windows 10: NUC8i3BEHFA, NUC8i5BEHFA, NUC8i5BEKPA

Intel® NUC Kit: NUC8i3BEH, NUC8i3BEHS, NUC8i3BEK, NUC8i5BEH, NUC8i5BEHS, NUC8i5BEK, NUC8i7BEH, NUC8i7BEK

BECFL357.86A.0088

Intel® NUC 8 Home, a Mini PC with Windows® 10: NUC8i3CYSM, NUC8i3CYSN

CYCNLi35.86A.0049

Intel® NUC 8 Rugged Kit NUC8CCHKR

Intel® NUC Board NUC8CCHB

CHAPLCEL.0054

Intel® NUC 8 Compute Element: CM8CCB, CM8i3CB, CM8i5CB, CM8i7CB, CM8PCB

CBWHL.0094

Intel® NUC 8 Pro Board NUC8i3PNB

Intel® NUC 8 Pro Kit: NUC8i3PNH, NUC8i3PNK

PNWHL357.0042

Intel® NUC 8 Mainstream-G kit: NUC8i5INH, NUC8i7INH

Intel® NUC 8 Mainstream-G mini PC: NUC8i5INH, NUC8i7INH

INWHL357.0041

Intel® NUC 7 Essential, a Mini PC with Windows® 10 - NUC7CJYSAL

Intel® NUC Kit: NUC7CJYH, NUC7PJYH

JYGLKCPX.86A.0062

Intel® NUC 7 Business, a Mini PC with Windows® 10 Pro - NUC7i3DNHNC

Intel® NUC 7 Business, a Mini PC with Windows® 10 Pro - NUC7i3DNKTC

Intel® NUC Board NUC7i3DNBE

Intel® NUC Kit NUC7i3DNHE, NUC7i3DNKE

DNKBLi30.86A.0073

Intel® NUC 7 Business, a Mini PC with Windows® 10 Pro - NUC7i5DNKPC, NUC7i5DNBE, NUC7i5DNHE, NUC7i5DNKE

DNKBLi5v.86A.0073

Intel® NUC Kit: NUC6CAYH, NUC6CAYS

AYAPLCEL.86A.0069

Recommendations:

Intel recommends updating the Intel® NUCs listed above to the latest BIOS version (see provided table).

Acknowledgements:

Intel would like to thank Denis Straghkov for reporting this issue.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.

Revision History

Revision

Date

Description

1.0

11/09/2021

Initial Release

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