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HIGH

CVE-2026-98281

CVSS v3

7.8

HIGH

EPSS Score

0.2 %

exploit probability, as of 2026-10-06

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork() As Jann demonstrated, it is entirely feasible to access the mm through vfork(). Therefore we need to allocate a private hash on vfork() as well as any other CLONE_VM user. Specifically, it must be avoided to have (private) futex waiters before allocating the private hash.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-10-06
Last Modified
2026-10-07

Frequently asked questions

What is CVE-2026-98281?

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork() As Jann demonstrated, it is entirely feasible to access the mm through vfork(). Therefore we need to allocate a private hash on vfork() as well as any other CLONE_VM user. Specifically, it must be avoided to have (private) futex waiters before allocating the private hash.

Is CVE-2026-98281 actively exploited?

Active exploitation of CVE-2026-98281 has not been confirmed. Its EPSS score was 0.2% on 2026-10-06, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-98281?

CVE-2026-98281 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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