SB2026020318 - Multiple vulnerabilities in ESP-IDF

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2026-25508)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in the BLE ATT Prepare Write handling of the BLE provisioning transport. A remote attacker on the local network can trigger an out-of-bounds read error and cause a denial of service condition on the system.

2) Use-after-free (CVE-ID: CVE-2026-25507)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the BLE provisioning transport layer. A remote attacker on the local network can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://github.com/espressif/esp-idf/security/advisories/GHSA-9j5x-rf36-54x9
• https://github.com/espressif/esp-idf/security/advisories/GHSA-h7r3-gmg9-xjmg