CVE Catalog

CVE-2026-30603

MediumCVSS 6.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.12%

2th percentile - higher than 2% of all known CVEs

Summary

In the firmware update mechanism of the Qianniao QN-L23PA0904 device (version 20250721.1640), a vulnerability allows an attacker to gain root access, install backdoors, and exfiltrate data by supplying a crafted iu.sh script from an SD card.

Risk Assessment

An attacker with physical access can fully compromise the device, install persistent backdoors, and steal data.

Recommendation

Update the device firmware to the latest version that fixes this vulnerability. Restrict physical access to devices.

Related vulnerabilities

Original NVD description (English source)

An issue in the firmware update mechanism of Qianniao QN-L23PA0904 v20250721.1640 allows attackers to gain root access, install backdoors, and exfiltrate data via supplying a crafted iu.sh script contained in an SD card.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS