CVSS 7.4 · HIGH

CVE-2026-42799

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.

View on NVD

Analysis

This vulnerability affects specific firmware for ASR Microelectronics modem chipsets used in specialized hardware. It does not impact common web, mobile, or backend development stacks and is unlikely to affect members of the community.

Severity

Score: 7.4(HIGH)

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

AV: NETWORK

AC: LOW

PR: LOW

UI: NONE

S: CHANGED

C: LOW

I: LOW

A: LOW

Weakness (CWE): CWE-125

EPSS

Probability of exploitation (next 30 days): 0.0005 (0.0%)

Percentile: 14.5%

EPSS: 2026-05-06

Affects

asrmicro:asr1803_firmwareasrmicro:asr1803

Technical description

Published: 4/30/2026, 9:16:03 AM

Last modified: 5/5/2026, 2:53:31 AM

References

https://www.asrmicro.com/en/goods/psirt?cid=44

How to read this card

Actively exploited

KEV (Known Exploited Vulnerabilities) is CISA's catalog of CVEs confirmed as actively exploited in the real world. If a CVE is on KEV, someone is already using it in attacks.

CVSS 10.0

CVSS 10.0 — máxima severidad teórica. Explotable de forma remota, sin privilegios, con impacto total. Aún no confirmada como explotada en el mundo real, pero parchea ya.

AI-recommended

Un modelo de lenguaje revisó el CVE y consideró que afecta a software ampliamente desplegado o herramientas comunes de desarrollo. Un humano del equipo aprobó la publicación antes de que llegara aquí.

Categorías de impacto que evalúa la IA

widely_deployed_infra — kernel Linux, OpenSSL, glibc, k8s, Docker, nginx, OpenSSH.

popular_dev_tooling — Node.js, Python, Go, React, Next.js, librerías comunes de npm/pip.

common_consumer_software — Chrome, Firefox, Windows, macOS, apps móviles populares.

enterprise_saas — GitHub, GitLab, Atlassian, Salesforce, Cisco, Fortinet, Ivanti.

niche_software — CMS regionales, herramientas de hobby, librerías de poco uso.

not_relevant — firmware específico de proveedor, software descontinuado.

EPSS — EPSS (Exploit Prediction Scoring System) by FIRST.org estimates the probability that a CVE will be exploited in the next 30 days. Range is 0 to 1; very fresh CVEs typically score low until evidence accumulates.