CVE-2025-68473 ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling
An out-of-bounds write in the ESP-IDF Bluetooth SDP handler allows attackers to potentially execute code or crash the device via crafted Bluetooth services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-68473?
CVE-2025-68473 is a memory corruption vulnerability in espressif esp-idf, published on 26 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the ESP-IDF Bluetooth host stack (BlueDroid), the function bta_dm_sdp_result() used a fixed-size array uuid_list[32][MAX_UUID_SIZE] to store discovered service UUIDs during the SDP (Service Discovery Protocol) process. On modern Bluetooth devices, it is possible for the number of available services to exceed this fixed limit (32). In such cases, if more than 32 services are discovered, subsequent writes to uuid_list could exceed the bounds of the array, resulting in a potential out-of-bounds write condition.
Weakness: CWE-787
Which versions are affected by CVE-2025-68473?
It affects 1 product.
Products include Espressif Esp-Idf.
How do I fix CVE-2025-68473?
No fix has been published for CVE-2025-68473 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-2025-68473 being exploited?
There is no known exploitation of CVE-2025-68473 in the wild and no public exploit code.
Other vulnerabilities in espressif esp-idf
Sources
Also known as GHSA-hmjj-rjvv-w8pq.