Listen to this Post
The CVE-2025-66323 vulnerability involves an improper security check in the card module of Huawei devices. This flaw arises from inadequate validation of security criteria during card operations, such as insertion or access. Local attackers can exploit this by crafting malicious inputs that bypass security checks, requiring user interaction like clicking a link or inserting a card. With no privileges needed, any local user may trigger the vulnerability. The improper check likely occurs in the software layer handling card credentials, leading to weak authentication. Exploitation could allow unauthorized reading of card data or manipulation of card services. The vulnerability affects confidentiality, integrity, and availability, though at a low level. It may result in information disclosure, data tampering, or denial of service. The card module’s failure to enforce proper criteria enables attackers to send malformed data that is incorrectly processed. This can crash the module or leak sensitive information. The CVSS 3.1 vector AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L indicates local access, low complexity, and user interaction. Huawei devices with the affected card module are at risk. The issue highlights the need for robust security checks in hardware interfacing software. A patch is expected to address the flawed validation mechanism.
Platform: Huawei Technologies
Version: Not specified
Vulnerability: Improper criterion check
Severity: Medium
date: 2025-12-08
Prediction: Patch date TBD
What Undercode Say:
Analytics:
lspci -v | grep
dmesg | tail
cat /proc/cardinfo
Exploit code snippet:
void exploit_card_module() {
// Malicious input crafting
send_malformed_packet();
}
How Exploit:
Craft malicious card inputs.
Bypass security checks locally.
Require user interaction execution.
Protection from this CVE
Apply Huawei security patches.
Disable unnecessary card modules.
Monitor system logs actively.
Impact:
Low confidentiality impact.
Low integrity impact.
Low availability impact.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode

