CVE-2026-64559Disclosure

LOWCVSS 7.8 · HIGH

Signal is active with 3 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
3 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 2 signals
Disclosure: 1 classified signal
General: 1 classified signal
3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d

Signal classification3 categories

Disclosure

133.3%

General

133.3%

Patch

133.3%

Referenced assets3 URLs

By indicator

Full discourse3 posts

Infoflowcloud@infoflowcloud91d
Patch
🚨*CVE* CVE-2026-64559 In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in PKEY_VERIFYPROTK ioctl Explicitly check the buffer length request str… https://www.cve.org/CVERecord?id=CVE-2026-64559 ----- Traducción: CVE-2026-64559 En … http://infoflow.cloud`
Post summary
This brief notice reports that CVE‑2026‑64559 in the Linux kernel has been resolved; no exploit code or active attacks are mentioned.
0000039
96 followersView on X
CVE@CVEnew91d
Disclosure
CVE-2026-64559 In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in PKEY_VERIFYPROTK ioctl Explicitly check the buffer length request str… https://www.cve.org/CVERecord?id=CVE-2026-64559
Post summary
The text announces the resolution of CVE‑2026‑64559 in the Linux kernel, detailing a buffer‑length check issue in an s390 ioctl, but offers no information on exploits, patches, or active use.
00000920
57.9K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds91d
General
CVE-2026-64559 Buffer Length Validation in Linux Kernel s390/pkey PKEY_VERIFYPROTK ioctl https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-64559
Post summary
The content merely lists CVE-2026-64559 with a brief technical description and a link to a vulnerability details page, lacking deeper context or actionable information.
00000125
4.1K followersView on X

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