CVE-2026-30603: n/a
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.
AI Analysis
Technical Summary
CVE-2026-30603 describes a vulnerability in the firmware update process of Qianniao QN-L23PA0904 version 20250721.1640. The flaw allows an attacker with physical access to supply a malicious iu.sh script on an SD card, which the device executes during firmware update. This results in root access compromise, enabling installation of persistent backdoors and unauthorized data exfiltration. The vulnerability involves improper control of file execution (CWE-494) and insufficient verification of data authenticity (CWE-345).
Potential Impact
Successful exploitation grants attackers root privileges on the affected device, allowing full control including installing backdoors and exfiltrating sensitive data. This compromises confidentiality, integrity, and availability of the device and its data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict physical access to the device to prevent attackers from inserting crafted SD cards. Monitor vendor communications for firmware updates addressing this issue.
CVE-2026-30603: n/a
Description
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.
CVSS v3.1
Score 6.8medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-30603 describes a vulnerability in the firmware update process of Qianniao QN-L23PA0904 version 20250721.1640. The flaw allows an attacker with physical access to supply a malicious iu.sh script on an SD card, which the device executes during firmware update. This results in root access compromise, enabling installation of persistent backdoors and unauthorized data exfiltration. The vulnerability involves improper control of file execution (CWE-494) and insufficient verification of data authenticity (CWE-345).
Potential Impact
Successful exploitation grants attackers root privileges on the affected device, allowing full control including installing backdoors and exfiltrating sensitive data. This compromises confidentiality, integrity, and availability of the device and its data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict physical access to the device to prevent attackers from inserting crafted SD cards. Monitor vendor communications for firmware updates addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-03-04T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69ceb0a7e6bfc5ba1df381ff
Added to database: 04/02/2026, 18:08:39 UTC
Last enriched: 07/05/2026, 21:10:37 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 131
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