Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-63860

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
27/07/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> RDMA/core: Prefer NLA_NUL_STRING<br /> <br /> These attributes are evaluated as c-string (passed to strcmp), but<br /> NLA_STRING doesn&amp;#39;t check for the presence of a \0 terminator.<br /> <br /> Either this needs to switch to nla_strcmp() and needs to adjust printf fmt<br /> specifier to not use plain %s, or this needs to use NLA_NUL_STRING.<br /> <br /> As the code has been this way for long time, it seems to me that userspace<br /> does include the terminating nul, even tough its not enforced so far, and<br /> thus NLA_NUL_STRING use is the simpler solution.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.40 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.40
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools