TI-2025-42003 Aliases CVE-2025-68473

ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling

LOW 9CWE-787Published 2025-12-26 · Updated 2025-12-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00409 35th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
espressif	esp-idf	5.5-beta1 – 5.5.1; 5.4-beta1 – 5.4.3; 5.3-beta1 – 5.3.4; 5.2-beta1 – 5.2.6; up to 5.1.6	—	No fix listed	CNA

esp-idf Vendorespressif Affected 5.5-beta1 – 5.5.1; 5.4-beta1 – 5.4.3; 5.3-beta1 – 5.3.4; 5.2-beta1 – 5.2.6; up to 5.1.6 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:a:espressif:esp-idf:5.1.6:::::::*	5.1.6	Vulnerable	espressif
cpe:2.3:a:espressif:esp-idf:5.2.6:::::::*	5.2.6	Vulnerable	espressif
cpe:2.3:a:espressif:esp-idf:5.3.4:::::::*	5.3.4	Vulnerable	espressif
cpe:2.3:a:espressif:esp-idf:5.4.3:::::::*	5.4.3	Vulnerable	espressif
cpe:2.3:a:espressif:esp-idf:5.5.1:::::::*	5.5.1	Vulnerable	espressif

cpe:2.3:a:espressif:esp-idf:5.1.6:*:*:*:*:*:*:* Versions 5.1.6 Vulnerable ·espressif
cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:* Versions 5.2.6 Vulnerable ·espressif
cpe:2.3:a:espressif:esp-idf:5.3.4:*:*:*:*:*:*:* Versions 5.3.4 Vulnerable ·espressif
cpe:2.3:a:espressif:esp-idf:5.4.3:*:*:*:*:*:*:* Versions 5.4.3 Vulnerable ·espressif
cpe:2.3:a:espressif:esp-idf:5.5.1:*:*:*:*:*:*:* Versions 5.5.1 Vulnerable ·espressif

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-68473

References

Patch 7

Advisory 1

https://github.com/espressif/esp-idf/security/advisories/GHSA-hmjj-rjvv-w8pq

TI-2024-22076 Buffer Overflow vulnerability in esp-idf v.5.1 allows a remote attacker to execute… CVSS 3.1MEDIUM 6.5
TI-2026-33125 ESF-IDF: Out-of-Bounds Write in ESP-TEE Secure Service Wrappers CVSS 3.1CRITICAL 9.3
TI-2025-32598 ESP-NOW Integer Underflow Vulnerability Advisory CVSS 4.0HIGH 7.2
TI-2022-08703 Espressif Bluetooth Mesh Stack Vulnerable to Out-of-bounds Write leading to memory buffer corruption CVSS 3.1HIGH 8.8
TI-2021-09371 The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not… CVSS 3.1HIGH 8.8
TI-2026-33292 ESF-IDF: Remote Null Pointer Dereference in WebSocket Server CVSS 3.1HIGH 7.5

See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences