Out-of-bounds Read in ASR Kestrel nr_fw Module

Publication date: 2026-04-30

Last updated on: 2026-05-05

Assigner: ASR Microelectronics Co., Ltd.

Description

Out-of-bounds read vulnerability in ASR Kestrel (nr_fw modules) allows Overflow Buffers. This vulnerability is associated with program files Code/Nr/nr_fw/RA/src/NrPwrCtrl.C. This issue affects Kestrel: before 2026/02/10.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-30

Last Modified

2026-05-05

Generated

2026-07-06

AI Q&A

2026-04-30

EPSS Evaluated

2026-07-05

NVD

CVE-2026-42799

EUVD

EUVD-2026-26358

Affected Vendors & Products

Vendor	Product	Version / Range
asrmicro	asr1803_firmware	to 1.216.002 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in the ASR Kestrel software, specifically in the nr_fw modules. It involves the program files located at Code/Nr/nr_fw/RA/src/NrPwrCtrl.C. The flaw allows buffer overflow conditions, which means the software reads data outside the intended memory boundaries.

Impact Analysis

The vulnerability has a CVSS v3.1 base score of 7.4, indicating a high severity. It can lead to compromised confidentiality, integrity, and availability of the affected system. An attacker with low privileges can exploit this remotely without user interaction, potentially causing data leaks, unauthorized data modification, or denial of service.

Hi! I’m here to help you understand CVE-2026-42799. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70