CVE-2026-42800

HIGH

Deference after null check in ims_client sip

Title source: cna

Description

NULL pointer dereference vulnerability in ASR1903 in ASR Lapwing_Linux on Linux (ims_client modules) allows Pointer Manipulation. This vulnerability is associated with program files sip/utils/src/sipuri.c.

References (1)

Core 1

Core References

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

Scores

CVSS v3 7.4

EPSS 0.0024

EPSS Percentile 14.5%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (3)

ASR/Lapwing_Linux < 2026/4/14

asrmicro/asr1901_firmware < 1.225.003

asrmicro/asr1903_firmware < 1.225.003

Published Apr 30, 2026

Tracked Since Apr 30, 2026