CVE-2026-64559
Last modified
CVE-2026-64559 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 8fcc231ce3bea12b78bb94b280cdc03cff342435, < 0a9e34ccbe772b8f321388cdbdf4f22b94e513e7; >= 8fcc231ce3bea12b78bb94b280cdc03cff342435, < 693bf91d4db134f9b1c2840c8e287eee3d993bac; >= 8fcc231ce3bea12b78bb94b280cdc03cff342435, < 7e7e03848c918aa0acad5ffd75d929e3afec1554; >= 8fcc231ce3bea12b78bb94b280cdc03cff342435, < b3d4ab2d7df9426f7f1d3671d7e2108f2ca6e970 |
| Linux | Linux | 6.12 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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