Is CVE-2026-46532 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-46532 being exploited in the wild.

How severe is CVE-2026-46532?

Medium severity, with a CVSS score of 4.6, published 10 June 2026.

Which products and versions are affected?

Espressif Systems ESP-IDF 5.2.6, 5.3.5, 5.4.4, 5.5.3, 6.0.

Is there a fix for CVE-2026-46532?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-46532 attacked?

It is attacked from the adjacent network, in a software library.

Am I affected by CVE-2026-46532?

Check whether you run Espressif Systems ESP-IDF at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-46532: Espressif ESP-IDF out-of-bounds read in BlueDroid AVRCP parser

CVE-2026-46532 · Severity: medium · CVSS 4.6 · Published 2026-06-10

Espressif's IoT Development Framework (ESP-IDF) contains a security flaw in its Bluetooth software stack. A paired Bluetooth device, such as a smartphone or headset, could send a specially crafted message that causes the IoT device to read memory it shouldn't. While this does not directly expose sensitive user data like passwords, it could allow an attacker to learn technical details about the device's internal memory or potentially cause the device to crash, disrupting its operation.

Technologies: Espressif Systems ESP-IDF. Vendors: Espressif Systems.

Quick answers

Is CVE-2026-46532 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-46532 being exploited in the wild.
How severe is CVE-2026-46532?: Medium severity, with a CVSS score of 4.6, published 10 June 2026.
Which products and versions are affected?: Espressif Systems ESP-IDF 5.2.6, 5.3.5, 5.4.4, 5.5.3, 6.0.
Is there a fix for CVE-2026-46532?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-46532 attacked?: It is attacked from the adjacent network, in a software library.
Am I affected by CVE-2026-46532?: Check whether you run Espressif Systems ESP-IDF at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds read vulnerability exists in the BlueDroid AVRCP vendor-command parser (avrc_pars_vendor_cmd() in avrc_pars_tg.c) within the ESP-IDF. The vulnerability is caused by the AVRC_PDU_GET_CAPABILITIES and AVRC_PDU_LIST_PLAYER_APP_VALUES handlers dereferencing the first payload byte before verifying that the payload length is at least one. An authenticated peer within Bluetooth range can send a malformed AVRCP vendor command with a zero-length payload to trigger the read. While arbitrary memory is not directly disclosed, the resulting error code acts as a limited side-channel oracle regarding the value of the adjacent heap byte. The issue is patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.4, and 6.0.1.

Affected products

Espressif Systems ESP-IDF 5.2.6, 5.3.5, 5.4.4, 5.5.3, 6.0

Timeline

2026-05-19: advisory: GitHub advisory published by Espressif
2026-06-10: disclosed: CVE published to NVD

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.