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Actively Exploited Vulnerabilities

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CVE-2021-22555

Linux | KernelAdded 2025-10-06Remediation Deadline 2025-10-27

Linux Kernel Heap Out-of-Bounds Write Vulnerability

Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space.

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weakness Classification

CWE-787

References