Dashboard / CVE-2026-64559

CVE-2026-64559

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-07-29 Modified: 2026-11-13 First seen: 2026-11-03 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
linux linux_kernel 6.12 – 6.12.97

References & Advisories (4)

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001200
Percentile 1.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00120
2026-11-13
0.00120
2026-11-12
0.00120
2026-11-10
0.00120
2026-11-09
0.00120
2026-11-08
0.00120
2026-11-07
0.00120
2026-11-06
0.00120
2026-11-05
0.00120
2026-11-04
0.00120
2026-11-03
0.00120

Intelligence Sources

nvd ref →

External Links