CVE-2023-40238

mediumpriority · track · 23OT risk · elevatedEPSS 0.018 · 79 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.84% (79th) EPSS

CVSS 5.5 · medium

Is it mine?

211 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A LogoFAIL issue was discovered in BmpDecoderDxe in Insyde InsydeH2O with kernel 5.2 before 05.28.47, 5.3 before 05.37.47, 5.4 before 05.45.47, 5.5 before 05.53.47, and 5.6 before 05.60.47 for certain Lenovo devices. Image parsing of crafted BMP logo files can copy data to a specific address during the DXE phase of UEFI execution. This occurs because of an integer signedness error involving PixelHeight and PixelWidth during RLE4/RLE8 compression.

cvss

Technical severity, 0–10. One row per scoring source.

8.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–8.5

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.18.5highAV:L/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:Lsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 1.8 · impact 3.6

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USprimaryCWE-122USCWE-125US

affected products (211)

Products and version ranges known to be affected.

Dell PowerScale <12.4.1all versionscert_bundDE
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
Insyde UEFI Firmware kernel 5.2 <Version 05.28.47all versionscert_bundDE
Insyde UEFI Firmware kernel 5.3 <Version 05.37.47all versionscert_bundDE
Insyde UEFI Firmware kernel 5.4 <Version 05.45.47all versionscert_bundDE
Insyde UEFI Firmware kernel 5.5 <Version 05.53.47all versionscert_bundDE
Insyde UEFI Firmware kernel 5.6 <Version 05.60.47all versionscert_bundDE
Lenovo BIOSall versionscert_bundDEcpe:/h:lenovo:bios:-
Dell PowerScale OneFS< 12.4.1cert_bundDE
Insyde UEFI Firmware≤ kernel 5.3 <Version 05.37.47cert_bundDE
Insyde UEFI Firmware≤ kernel 5.2 <Version 05.28.47cert_bundDE
Insyde UEFI Firmware≤ kernel 5.4 <Version 05.45.47cert_bundDE
Insyde UEFI Firmware≤ kernel 5.5 <Version 05.53.47cert_bundDE
Insyde UEFI Firmware≤ kernel 5.6 <Version 05.60.47cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Insyde InsydeH2O5.2 → 5.28.47fstec_bduRU
Insyde InsydeH2O5.3 → 5.37.47fstec_bduRU
Insyde InsydeH2O5.4 → 5.45.47fstec_bduRU
Insyde InsydeH2O5.5 → 5.53.47fstec_bduRU
Insyde InsydeH2O5.6 → 5.60.47fstec_bduRU

showing 20 of 211

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-3068UEFI BIOS: Mehrere SchwachstellenDeutsch2023-12-06csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im UEFI BIOS verschiedener Hersteller ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen oder einen Denial of Service Zustand herbeizuführen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-12-07modified 2026-06-17

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references (13)

External citations — patches, advisories, analysis.

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