CVE-2021-21540 is a vulnerability in Dell Idrac9 Firmware
Published on April 30, 2021
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to overwrite configuration information by injecting arbitrarily large payload.
Vulnerability Analysis
CVE-2021-21540 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and a small impact on availability.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2021-21540 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2021-21540
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Affected Versions
Integrated Dell Remote Access Controller (iDRAC):- Version unspecified and below 4.40.00.00 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.