CVE-2021-34344

A stack buffer overflow vulnerability has been reported to affect QNAP device running QUSBCam2. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QUSBCam2: QTS 4.5.4: QUSBCam2 1.1.4 ( 2021/07/30 ) and later QTS 5.0: QUSBCam2 2.0.1 ( 2021/08/03 ) and later QTS 4.3.6: QUSBCam2 1.1.4 ( 2021/07/30 ) and later QTS 4.3.3: QUSBCam2 1.1.4 ( 2021/08/06 ) and later QuTS hero 4.5.3: QUSBCam2 1.1.4 ( 2021/07/30 ) and later

• CWE-787
• CWE-787

• https://www.qnap.com/en/security-advisory/qsa-21-34Vendor Advisory
• https://www.qnap.com/en/security-advisory/qsa-21-34Vendor Advisory

Published

Sep 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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• CVE-2021-34339Ming 0.4.8 has an out-of-bounds buffer access issue in the f…6.5
• CVE-2021-3434Stack based buffer overflow in le_ecred_conn_req(). Zephyr v…7.8
• CVE-2021-34340Ming 0.4.8 has an out-of-bounds buffer access issue in the f…6.5
• CVE-2021-34341Ming 0.4.8 has an out-of-bounds read vulnerability in the fu…6.5
• CVE-2021-34342Ming 0.4.8 has an out-of-bounds read vulnerability in the fu…6.5
• CVE-2021-34343A stack buffer overflow vulnerability has been reported to a…7.2
• CVE-2021-34345A stack buffer overflow vulnerability has been reported to a…9.8
• CVE-2021-34346A stack buffer overflow vulnerability has been reported to a…9.8
• CVE-2021-34348A command injection vulnerability has been reported to affec…9.8
• CVE-2021-34349A command injection vulnerability has been reported to affec…7.2
• CVE-2021-3435Information leakage in le_ecred_conn_req(). Zephyr versions …3.3
• CVE-2021-34351A command injection vulnerability has been reported to affec…9.8