CVE-2023-4818
HIGHPAX PayDroid - Bootloader Downgrade via Version Check Bypass
Title source: llmDescription
PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used. The attacker must have physical USB access to the device in order to exploit this vulnerability.
References (4)
Core 4
Core References
Permissions Required vendor-advisory
https://ppn.paxengine.com/release/development
Exploit, Third Party Advisory technical-description
https://blog.stmcyber.com/pax-pos-cves-2023/
Third Party Advisory third-party-advisory
https://cert.pl/en/posts/2024/01/CVE-2023-4818/
Third Party Advisory third-party-advisory
https://cert.pl/posts/2024/01/CVE-2023-4818/
Scores
CVSS v3
7.6
EPSS
0.0066
EPSS Percentile
47.1%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-74
Status
published
Products (1)
paxtechnology/paydroid
7.1.2_aquarius_11.1.50_20230614
Published
Jan 15, 2024
Tracked Since
Feb 18, 2026