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CVE-2025-49604

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-09 · updated 2026-06-17
• Weakness: CWE-122

Description

For Realtek AmebaD devices, a heap-based buffer overflow was discovered in Ameba-AIoT ameba-arduino-d before version 3.1.9 and ameba-rtos-d before commit c2bfd8216a1cbc19ad2ab5f48f372ecea756d67a on 2025/07/03. In the WLAN driver defragment function, lack of validation of the size of fragmented Wi-Fi frames may lead to a heap-based buffer overflow.

References

• https://github.com/Ameba-AIoT/ameba-arduino-d/pull/281
• https://github.com/Ameba-AIoT/ameba-arduino-d/releases/tag/V3.1.9
• https://www.amebaiot.com/en/security-bulletin-cve-2025-49604/

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