CVE-2021-38684 is a vulnerability in QNAP Multimedia Console
Published on November 13, 2021
Buffer Overflow Vulnerability in Multimedia Console
A stack buffer overflow vulnerability has been reported to affect QNAP NAS running Multimedia Console. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of Multimedia Console: Multimedia Console 1.4.3 ( 2021/10/05 ) and later Multimedia Console 1.5.3 ( 2021/10/05 ) and later
Vulnerability Analysis
CVE-2021-38684 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2021-38684 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2021-38684
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Affected Versions
QNAP Systems Inc. Multimedia Console:- Version unspecified and below 1.4.3 ( 2021/10/05 ) is affected.
- Version unspecified and below 1.5.3 ( 2021/10/05 ) is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.