CVE-2024-8105
highpriority · track · 0EPSS 0.003 · 20 %ileDEEUJPRUEPSS · scored 2026-10-27
A vulnerability exists in UEFI implementations that use a hard-coded software-based Platform Key (PK). An attacker in possession of the corresponding PK private key can sign arbitrary UEFI executables or firmware components, causing them to be trusted by affected systems and potentially bypassing UEFI Secure Boot trust validation.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedpepperl_fuchs_psirt
Install the appropiate updates from the Pepperl+Fuchs Homepage: * 18-34761B (BIOS 1.01) for BTC22-* * 18-35033B (BIOS 1.01) for BTC24-* * 18-34132C (BIOS 1.02) for RM-320* * 18-34132C / 18-34133E (BIOS 1.02) for PC320*
https://www.pepperl-fuchs.com/germany/de/classid_4098.htm - Mitigationpepperl_fuchs_psirt
Protect the device from unauthorized physical access.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–8.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (798)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- VDE-2024-065PEPPERL+FUCHS: HMI devices are affected by Insecure Platform Key 2024-11-26csaf · pepperl_fuchs_psirtDE
A vulnerability in the use of hard-coded Platform Keys (PK) within the UEFI framework, known as PKfail, has been discovered in several Pepperl+Fuchs devices.
- JVNDB-2024-000090JVN iPedia advisory JVNDB-2024-0000902024-09-06vendor · jvndbJP
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (27)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-8105/cnnvd
- https://github.com/binarly-io/Vulnerability-REsearch/blob/main/PKfail/BRLY-2024-005.mdcnnvd
- https://jvndb.jvn.jp/en/contents/2024/JVNDB-2024-000090.htmlcnnvd
- https://kb.cert.org/vuls/id/455367cnnvd
- https://security.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-FJ-ISS-2024-072412-Security-Notice.pdfcnnvd
- https://uefi.org/specs/UEFI/2.9_A/32_Secure_Boot_and_Driver_Signing.htmlcnnvd
- https://www.binarly.io/advisories/brly-2024-005cnnvd
- https://www.gigabyte.com/us/Support/Security/2205cnnvd
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