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HIGH

CVE-2026-55266

CVSS v3

7.8

HIGH

EPSS Score

—

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

In qsort of libufdt_sysdeps_vendor.c, there is a possible out-of-bounds write due to resource exhaustion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

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
2026-10-05
Last Modified
2026-10-05

Frequently asked questions

What is CVE-2026-55266?

In qsort of libufdt_sysdeps_vendor.c, there is a possible out-of-bounds write due to resource exhaustion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Is CVE-2026-55266 actively exploited?

Active exploitation of CVE-2026-55266 has not been confirmed.

What is the CVSS score for CVE-2026-55266?

CVE-2026-55266 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.

Is CVE-2026-55266 affecting your environment?

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