CVE-2023-40238: fujitsu celsius_c780_firmware
Vulnerability summary
CVE-2023-40238 is a medium (CVSS 5.5) vulnerability in fujitsu celsius_c780_firmware. EPSS estimates a 1.84% chance of exploitation in the next 30 days, higher than 78.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 07-12-2023PublishedVulnerability first disclosed.
- 25-02-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.84%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
-0.02 pp
From 1.86% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (binarly.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Fujitsu184 products
- celsius_c780_firmware< 1.28.0
- celsius_h5511_firmware< 1.16
- celsius_h7510_firmware< 1.17
- celsius_h7613_firmware< 1.14
- celsius_h780_firmware< 1.23
Insyde1 product
- insydeh2o≥ 5.2, < 5.2.05.28.47 | ≥ 5.3, < 5.3.05.37.47 | ≥ 5.4, < 5.4.05.45.47 | ≥ 5.5, < 5.5.05.53.47 | ≥ 5.6, < 5.6.05.60.47
2 vendors · 185 products
References
5 links- www.insyde.com/security-pledgeVendor Advisory
- www.kb.cert.org/vuls/id/811862Third Party Advisory
- www.insyde.com/security-pledge/SA-2023053Vendor Advisory
- security.netapp.com/advisory/ntap-20240105-0002/Third Party Advisory