CVE-2026-43032
Description
A flaw was found in the Linux kernel's Near Field Communication (NFC) pn533 driver. A local attacker could exploit this vulnerability by sending a continuous stream of malformed Universal Asynchronous Receiver-Transmitter (UART) traffic. This improper handling of incoming data leads to an unbounded growth of the receive buffer, which can exhaust system memory and result in a Denial of Service (DoS).
Understanding the Weakness (CWE)
Other,Integrity,Availability
Technical Impact: Varies by Context; DoS: Resource Consumption (CPU); Modify Memory; Read Memory
When the quantity is not properly validated, then attackers can specify malicious quantities to cause excessive resource allocation, trigger unexpected failures, enable buffer overflows, etc.
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