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By the Year

In 2026 there have been 0 vulnerabilities in Espressif Esp Now. Esp Now did not have any published security vulnerabilities last year.

Year Vulnerabilities Average Score
2026 0 0.00
2025 0 0.00
2024 1 6.50

It may take a day or so for new Esp Now vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Espressif Esp Now Security Vulnerabilities

ESP-IDF 2.5.1 ESP-NOW Replay Attack via Cache Misuse
CVE-2024-42483 6.5 - Medium - September 12, 2024

ESP-NOW Component provides a connectionless Wi-Fi communication protocol. An replay attacks vulnerability was discovered in the implementation of the ESP-NOW because the caches is not differentiated by message types, it is a single, shared resource for all kinds of messages, whether they are broadcast or unicast, and regardless of whether they are ciphertext or plaintext. This can result an attacker to clear the cache of its legitimate entries, there by creating an opportunity to re-inject previously captured packets. This vulnerability is fixed in 2.5.2.

Insufficient Verification of Data Authenticity

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