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ESP-IDF EUVD-2026-35919

| CVE-2026-46532 MEDIUM
Out-of-bounds Read (CWE-125)
2026-06-10 GitHub_M
4.6
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
4.6 MEDIUM
AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Primary rating from Vendor (GitHub_M) · only source for this CVE.

CVSS VectorVendor: GitHub_M

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

Lifecycle Timeline

2
Source Code Evidence Fetched
Jun 10, 2026 - 01:51 vuln.today
Analysis Generated
Jun 10, 2026 - 01:51 vuln.today

DescriptionCVE.org

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.3, and 6.0, an out-of-bounds read exists in the BlueDroid AVRCP vendor-command parser (avrc_pars_vendor_cmd() in components/bt/host/bluedroid/stack/avrc/avrc_pars_tg.c). This issue has been patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.4, and 6.0.1.

AnalysisAI

Out-of-bounds read in ESP-IDF's BlueDroid AVRCP vendor-command parser allows adjacent Bluetooth attackers with low privileges to leak device memory and degrade availability across multiple ESP-IDF stable branches. Versions 5.2.6, 5.3.5, 5.4.4, 5.5.3, and 6.0 are confirmed affected via the Espressif GitHub security advisory. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Enter Bluetooth radio range of target device
Delivery
Authenticate or pair with device (low-privilege pairing)
Exploit
Send malformed AVRCP vendor command with zero-length payload
Execution
avrc_pars_vendor_cmd() dereferences buffer pointer without length check
Persist
Read one byte past buffer boundary
Impact
Leak adjacent memory byte or trigger parser fault degrading availability

Vulnerability AssessmentAI

Exploitation The attacker must be within Bluetooth radio range of the target device (AV:A - Adjacent vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.6 score appropriately reflects meaningful but constrained real-world risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker positions themselves within Bluetooth range of an ESP32 device running an affected ESP-IDF version, authenticates or pairs at a low privilege level, and transmits a crafted AVRCP GET_CAPABILITIES or LIST_APPLICATION_SETTING_VALUES vendor command with a zero-length parameter payload. The parser in avrc_pars_vendor_cmd() dereferences the buffer pointer without the length guard, reading one byte beyond the allocated buffer - potentially disclosing an adjacent memory byte or triggering a fault that degrades Bluetooth stack availability. …
Remediation Upgrade to the corresponding patched release for your branch: 5.2.7, 5.3.6, 5.4.5, 5.5.4, or 6.0.1, as documented in the Espressif security advisory at https://github.com/espressif/esp-idf/security/advisories/GHSA-3pp8-42fh-3j3c. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-35919 vulnerability details – vuln.today

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