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CVE-2025-68473

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

Published: Dec 26, 2025Updated: Jan 22, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
8.6CVSSHIGH
EPSS Score
0.4%
Top 70.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

esp-idfespressif
LibraryLibrary
OSS Libraries / generic-library
espressifcommercialCNOperating Systemsaka esp-idf, arduino-esp32, esp8266 nonos sdk, espressif

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/espressif/esp-idf/security/advisories/GHSA-hmjj-rjvv-w8pq
github.com
https://github.com/espressif/esp-idf/commit/3286e45349b0b5c2b1422ef7e8d088b95eef895d
github.com
https://github.com/espressif/esp-idf/commit/4d928f2265c394d2abc85024228e920a5b26bcab
github.com
and 5 more references View all →

Timeline

Published
Dec 26, 2025
Last Updated
Jan 22, 2026

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