CVE-2023-40238

MEDIUM EXPLOITED

Fujitsu Esprimo Firmware - Cleartext Storage of Sensitive Information

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2023-40238 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

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.

Scores

CVSS v3 5.5
EPSS 0.0186
EPSS Percentile 76.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

VulnCheck KEV 2024-11-29
CWE
CWE-312
Status published
Products (50)
fujitsu/celsius_c780_firmware < 1.28.0
fujitsu/celsius_h5511_firmware < 1.16
fujitsu/celsius_h7510_firmware < 1.17
fujitsu/celsius_h7613_firmware < 1.14
fujitsu/celsius_h780_firmware < 1.23
fujitsu/celsius_h980_firmware
fujitsu/celsius_j5010_firmware < 1.64.0
fujitsu/celsius_j550\/2_firmware < 1.35.0
fujitsu/celsius_j580_firmware < 1.38.0
fujitsu/celsius_m7010_firmware < 1.12.0
... and 40 more
Published Dec 07, 2023
Tracked Since Feb 18, 2026