SB2026010844 - Multiple vulnerabilities in Apache NimBLE

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Main Vulnerability Database SB2026010844

SB2026010844 - Multiple vulnerabilities in Apache NimBLE

Published: January 8, 2026

Security Bulletin ID SB2026010844
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2025-53470)

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

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


The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the HCI H4 driver. A local user can send a specially crafted HCI event to trigger an out-of-bounds read error and read contents of memory on the system.


2) NULL pointer dereference (CVE-ID: CVE-2025-53477)

CWE-ID: CWE-476 - NULL Pointer Dereference

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


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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Note, successful exploitation of the vulnerability requires disabled asserts and broken or bogus Bluetooth controller.


3) Authentication Bypass by Spoofing (CVE-ID: CVE-2025-62235)

CWE-ID: CWE-290 - Authentication Bypass by Spoofing

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


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect handling of SMP Security Request. A remote attacker can hijack an existing session subsequently disconnecting the legitimate user.


4) Cleartext transmission of sensitive information (CVE-ID: CVE-2025-52435)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

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


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper handling of Pause Encryption procedure on Link Layer, which results in a previously encrypted connection being left in un-encrypted state. A remote attacker with ability to intercept network traffic can gain access to sensitive data.


Remediation

Install update from vendor's website.

References