CVE-2025-55297 ESF-IDF BluFi Example Memory Overflow Vulnerability
Memory overflows in the BluFi example allow attackers to execute arbitrary code or cause denial of service on Espressif IoT devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55297?
CVE-2025-55297 is a medium-severity memory corruption vulnerability in espressif esp-idf, published on 21 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. The BluFi example bundled in ESP-IDF was vulnerable to memory overflows in two areas: Wi-Fi credential handling and Diffie–Hellman key exchange. This vulnerability is fixed in 5.4.1, 5.3.3, 5.1.6, and 5.0.9.
Which versions are affected by CVE-2025-55297?
It affects 1 product.
Products include Espressif Esp-Idf.
How do I fix CVE-2025-55297?
No fix has been published for CVE-2025-55297 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-55297 being exploited?
There is no known exploitation of CVE-2025-55297 in the wild and no public exploit code.
Other vulnerabilities in espressif esp-idf
Sources
Also known as GHSA-9w88-r2vm-qfc4.