SEPTEMBER 20, 2026
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Case File

CVE-2026-64558

HIGH · CVSS 7.8 EPSS 0.12%

Source: NVD + CISA KEV + EPSS · Published 2026-07-29 · Last synced 2026-08-28

CyberRota Analysis

AI-Generated

A vulnerability in the Linux kernel's pkey_pckmo handler allows for potential buffer overflow issues due to inadequate length checks on the target buffer. This could lead to unauthorized access or data corruption, impacting system integrity and security. Organizations using affected Linux systems should prioritize patching this vulnerability to mitigate risks associated with buffer overflow attacks.

CVE
CVE-2026-64558
Severity
HIGH
CVSS
7.8
EPSS
0.12%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in pkey_pckmo handler implementation Explicitly check the length of the target buffer in the pkey_pckmo implementation of the key_to_protkey() handler function. The handler function fails, if the generated output data exceeds the length of the provided target buffer.