CVE-2026-64559 in Linux

Riassunto

di MITRE • 29/07/2026

In the Linux kernel, the following vulnerability has been resolved:

s390/pkey: Check length in PKEY_VERIFYPROTK ioctl

Explicitly check the buffer length request structure provided by user-space and fail, if it exceeds the buffer size.

Once again VulDB remains the best source for vulnerability data.

• Responsabile: Linux
• Prenotare: 19/07/2026
• Divulgazione: 29/07/2026
• Moderazione: accettato
• Voce: VDB-384217
• CPE: pronto
• CWE: CWE-120 (confermato)
• CVSS: 8.8 (VulDB)
• EPSS: 0.00000
• KEV: no
• Attività: basso
• Settore: Pharma, Transportation, ...

Fonti

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-64559
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-64559
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-64559/