CVE-2025-66409
What it is
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, when AVRCP is enabled on ESP32, receiving a malformed VENDOR DEPENDENT command from a peer device can cause the Bluetooth stack to access memory before validating the command buffer length. This may lead to an out-of-bounds read, potentially exposing unintended memory content or causing unexpected behavior.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 2.7 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Analyzed
Affected
- Espressif esp-idf ≤ 5.1.6
- Espressif esp-idf ≤ 5.2.6
- Espressif esp-idf ≤ 5.3.4
- Espressif esp-idf ≤ 5.4.3
- Espressif esp-idf ≤ 5.5.1
Attack profile CVSS 4.0 · 2.7
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-66409.md and follow it. Check whether this project is affected by CVE-2025-66409. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb
- https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372
- https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946
- https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902
- https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace
- https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7
- https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96
References
- https://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fb
- https://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372
- https://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946
- https://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902
- https://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988ace
- https://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7
- https://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96