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70 Lenovo laptop models are at risk due to BIOS vulnerabilities

Three critical BIOS vulnerabilities were found in 70 Lenovo laptop models, including the Thinkbook, Ideapad and Yoga lineup, which put the devices at risk of permanent infection.

The three buffer overflow vulnerabilities allow an attacker with local privileges to execute arbitrary code in ReadyBootDxe, SystemLoadDefaultDxe and SystemBootManagerDxe drivers. The company assigned these vulnerabilities a medium severity rating and tracked them as CVE-2022-1890, CVE-2022-1891 and CVE-2022-1892, respectively.

Anyone using one of the 70 affected Lenovo laptop models should manually update the firmware to prevent malware from infecting their device’s UEFI firmware.

“The vulnerabilities can be exploited to achieve arbitrary code execution in the early phases of the platform boot, possibly allowing the attackers to hijack the OS execution flow and disable some important security features,” Security researchers at ESET who discovered and reported the vulnerabilities to Lenovo tweeted on Wednesday.

The following list of Lenovo laptop models running Windows 10 and Windows 11 are affected by one or more of the three aforementioned BIOS vulnerabilities.

ProductComponentCVE-2022-1890CVE-2022-1891CVE-2022-1892
100e 2nd Gen Notebook (Lenovo) (Type 82GJ)BIOS Update for Windows 10 (64-bit) – Lenovo 100e 2nd Gen (MT:82GJ), Lenovo 300e 2nd Gen (MT:82GK)Not AffectedNot AffectedFRCN23WW
100w Gen 3 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – 100w Gen 3, 300w Gen 3Not AffectedNot AffectedGACN38WW
13w Yoga (Type 82S1, 82S2) Laptop (Lenovo)BIOS Update Utility for Windows 11 (Version 21H2 or later), 10 (Version 21H2 or later) – Lenovo 13w Yoga (Type 82S1, 82S2)Not AffectedNot AffectedJACN31WW
14W Gen 2 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Lenovo 14W Gen 2Not AffectedNot AffectedH0CN21WW
300e 2nd Gen Notebook (Lenovo) (Type 82GK)BIOS Update for Windows 10 (64-bit) – Lenovo 100e 2nd Gen (MT:82GJ), Lenovo 300e 2nd Gen (MT:82GK)Not AffectedNot AffectedFRCN23WW
300w Gen 3 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – 100w Gen 3, 300w Gen 3Not AffectedNot AffectedGACN38WW
500w Gen 3 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Lenovo 500w Gen 3Not AffectedNot AffectedG6CN40WW
730S-13IML Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga S730-13IML,ideapad 730S-13IMLNot AffectedNot AffectedBRCN20WW
Flex 3-11ADA05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 3-11ADA05Not AffectedNot AffectedFPCN26WW
Flex 5-14ALC05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Flex 5 14ALC05, Flex 5 15ALC05Not AffectedNot AffectedGJCN27WW
Flex 5-14ARE05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 5-14ARE05Not AffectedNot AffectedEECN39WW
Flex 5-14IIL05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 5-14IIL05, Flex 5-15IIL05Not AffectedNot AffectedECCN40WW
Flex 5-14ITL05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 5-14ITL05, Flex 5-15ITL05Not AffectedNot AffectedFXCN38WW
Flex 5-15ALC05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Flex 5 14ALC05, Flex 5 15ALC05Not AffectedNot AffectedGJCN27WW
Flex 5-15IIL05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 5-14IIL05, Flex 5-15IIL05Not AffectedNot AffectedECCN40WW
Flex 5-15ITL05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Flex 5-14ITL05, Flex 5-15ITL05Not AffectedNot AffectedFXCN38WW
IdeaPad 1-11ADA05 LaptopBIOS Update for Windows 10 (64-bit) – ideapad 1-11ADA05, ideapad 1-14ADA05Not AffectedNot AffectedFQCN26WW
IdeaPad 1-11IGL05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 1-11IGL05, ideapad 1-14IGL05Not AffectedNot AffectedDWCN24WW
IdeaPad 1-14ADA05 LaptopBIOS Update for Windows 10 (64-bit) – ideapad 1-11ADA05, ideapad 1-14ADA05Not AffectedNot AffectedFQCN26WW
IdeaPad 1-14IGL05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 1-11IGL05, ideapad 1-14IGL05Not AffectedNot AffectedDWCN24WW
IdeaPad 3 15ADA05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – V14-ADA, V15-ADA, ideapad 3-14ADA05, ideapad 3-15ADA05, ideapad 3-17ADA05Not AffectedNot AffectedE8CN36WW
IdeaPad 3-14ADA05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – V14-ADA, V15-ADA, ideapad 3-14ADA05, ideapad 3-15ADA05, ideapad 3-17ADA05Not AffectedNot AffectedE8CN36WW
IdeaPad 3-14ADA6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – IdeaPad 3-14ADA6, IdeaPad 3-15ADA6, IdeaPad 3-17ADA6Not AffectedNot AffectedHBCN24WW
IdeaPad 3-14ALC6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 3-14ALC6, ideapad 3-15ALC6, ideapad 3-17ALC6, V14 G2-ALC, V15 G2-ALCNot AffectedNot AffectedGLCN48WW
IdeaPad 3-15ADA6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – IdeaPad 3-14ADA6, IdeaPad 3-15ADA6, IdeaPad 3-17ADA6Not AffectedNot AffectedHBCN24WW
IdeaPad 3-15ALC6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 3-14ALC6, ideapad 3-15ALC6, ideapad 3-17ALC6, V14 G2-ALC, V15 G2-ALCNot AffectedNot AffectedGLCN48WW
IdeaPad 3-17ADA05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – V14-ADA, V15-ADA, ideapad 3-14ADA05, ideapad 3-15ADA05, ideapad 3-17ADA05Not AffectedNot AffectedE8CN36WW
IdeaPad 3-17ADA6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – IdeaPad 3-14ADA6, IdeaPad 3-15ADA6, IdeaPad 3-17ADA6Not AffectedNot AffectedHBCN24WW
IdeaPad 3-17ALC6 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 3-14ALC6, ideapad 3-15ALC6, ideapad 3-17ALC6, V14 G2-ALC, V15 G2-ALCNot AffectedNot AffectedGLCN48WW
IdeaPad 5 15ABA7BIOS Update for Windows 11 (64-bit) – IdeaPad 5 15ABA7Not AffectedNot AffectedKACN14WW
IdeaPad Flex 5 14ALC7 LaptopBIOS Update for Windows 11 (64-bit) – IdeaPad Flex 5 14ALC7, IdeaPad Flex 5 16ALC7Not AffectedNot AffectedJCCN29WW
IdeaPad Flex 5 16ALC7BIOS Update for Windows 11 (64-bit) – IdeaPad Flex 5 14ALC7, IdeaPad Flex 5 16ALC7Not AffectedNot AffectedJCCN29WW
Legion S7-15ACH6 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Legion S7-15ACH6Not AffectedNot AffectedHACN37WW
Legion S7-15ARH5 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – Legion S7-15ARH5Not AffectedNot AffectedG1CN27WW
Legion S7-15IMH5 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – Legion S7-15IMH5Not AffectedNot AffectedFDCN40WW
S145-14API Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S145-14API, S145-15APINot AffectedNot AffectedBUCN33WW
S145-14AST Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S145-14AST, S145-15ASTNot AffectedNot AffectedAYCN28WW
S145-15API Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S145-14API, S145-15APINot AffectedNot AffectedBUCN33WW
S145-15AST Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S145-14API, S145-15APINot AffectedNot AffectedBUCN33WW
S145-15AST Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S145-14AST, S145-15ASTNot AffectedNot AffectedAYCN28WW
S540-13API Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – S540-13APINot AffectedNot AffectedCXCN36WW
S940-14IIL Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Yoga S940-14IIL, ideapad S940-14IILNot AffectedNot AffectedBQCN34WW
Slim 1-11AST-05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Slim 1-11AST-05, Slim 1-14AST-05Not AffectedNot AffectedCWCN25WW
Slim 1-14AST-05 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Slim 1-11AST-05, Slim 1-14AST-05Not AffectedNot AffectedCWCN25WW
ThinkBook 13s G2 ARE LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 13s G2 ARENot AffectedNot AffectedFVCN24WW
ThinkBook 13s G2 ITL LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ThinkBook 13s G2 ITL, ThinkBook 14s G2 ITLNot AffectedNot AffectedF9CN50WW
ThinkBook 13s G3 ACN LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ThinkBook 13s G3 ACNNot AffectedNot AffectedGMCN29WW
ThinkBook 13s-IML LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 13s-IML, ThinkBook 14s-IMLNot AffectedNot AffectedCQCN37WW
ThinkBook 14-IIL LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 14-IIL, ThinkBook 15-IILDJCN28WWDJCN28WWDJCN28WW
ThinkBook 14-IML LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 14-IML, ThinkBook 15-IMLCJCN38WWCJCN38WWCJCN38WW
ThinkBook 14p G2 ACH LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ThinkBook 14p G2 ACHNot AffectedNot AffectedGWCN41WW
ThinkBook 14s G2 ITL LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ThinkBook 13s G2 ITL, ThinkBook 14s G2 ITLNot AffectedNot AffectedF9CN50WW
ThinkBook 14s-IML LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 13s-IML, ThinkBook 14s-IMLNot AffectedNot AffectedCQCN37WW
ThinkBook 15-IIL LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 14-IIL, ThinkBook 15-IILDJCN28WWDJCN28WWDJCN28WW
ThinkBook 15-IML LaptopBIOS Update for Windows 10 (64-bit) – ThinkBook 14-IML, ThinkBook 15-IMLCJCN38WWCJCN38WWCJCN38WW
ThinkBook 16p G2 ACH LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ThinkBook 16p G2 ACHNot AffectedNot AffectedGXCN42WW
V130-15IKB Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – V130-15IKBNot AffectedNot Affected8VCN31WW
V14 G2-ALC Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 3-14ALC6, ideapad 3-15ALC6, ideapad 3-17ALC6, V14 G2-ALC, V15 G2-ALCNot AffectedNot AffectedGLCN48WW
V14-ADA Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – V14-ADA, V15-ADA, ideapad 3-14ADA05, ideapad 3-15ADA05, ideapad 3-17ADA05Not AffectedNot AffectedE8CN36WW
V15 G2-ALC Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – ideapad 3-14ALC6, ideapad 3-15ALC6, ideapad 3-17ALC6, V14 G2-ALC, V15 G2-ALCNot AffectedNot AffectedGLCN48WW
V15-ADA Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – V14-ADA, V15-ADA, ideapad 3-14ADA05, ideapad 3-15ADA05, ideapad 3-17ADA05Not AffectedNot AffectedE8CN36WW
Yoga 9-15IMH5 Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga 9-15IMH5Not AffectedNot AffectedEPCN28WW
Yoga C640-13IML LTE Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – Yoga C640-13IML, Yoga C640-13IML LTECHCN28WWCHCN28WWCHCN28WW
Yoga C640-13IML Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – Yoga C640-13IML, Yoga C640-13IML LTECHCN28WWCHCN28WWCHCN28WW
Yoga C940-15IRH Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga C940-15IRHNot AffectedNot AffectedBSCN37WW
Yoga S730-13IML Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga S730-13IML,ideapad 730S-13IMLNot AffectedNot AffectedBRCN20WW
Yoga S940-14IIL Laptop (Lenovo)BIOS Update for Windows 10 (64-bit) – Yoga S940-14IIL, ideapad S940-14IILNot AffectedNot AffectedBQCN34WW
Yoga Slim 7 Pro-14ACH5 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga Slim 7 Pro-14ACH5, Yoga Slim 7 Pro-14ACH5 ONot AffectedNot AffectedGZCN29WW
Yoga Slim 7 Pro-14ACH5 O Laptop (ideapad)BIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – Yoga Slim 7 Pro-14ACH5, Yoga Slim 7 Pro-14ACH5 ONot AffectedNot AffectedGZCN29WW
Yoga Slim 7 Pro-14ARH5 Laptop (ideapad)BIOS Update for Windows 10 (64-bit) – Yoga Slim 7 Pro-14ARH5Not AffectedNot AffectedG7CN24WW
ideapad 5-15ALC05 LaptopBIOS Update for Windows 10 (64-bit) and Windows 11 (64-bit) – IdeaPad 5-15ALC05Not AffectedNot AffectedH2CN27WW
Source: Lenovo

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