CVSS 3.1 Score 9.8 of 10 (high)


Published Dec 4, 2023
Updated: Dec 22, 2023


CVE-2023-21216 is a cyber vulnerability that has been assigned a risk score of 66. It affects the PMRChangeSparseMemOSMem function in the physmem_osmem_linux.c file. The vulnerability allows for arbitrary code execution due to a use after free, which can lead to local escalation of privilege in the kernel without requiring additional execution privileges or user interaction. The base severity of this vulnerability is rated as critical, with a base score of 9.8 according to [email protected]. The impact includes high integrity and confidentiality impacts, with an availability impact also being rated as high. Remediation measures are not provided in the given information, but organizations should take immediate action to address this vulnerability as it poses a significant danger to their systems and data security.


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