CVE-2026-90463

A flaw was found in the sssd NSS responder. This input validation vulnerability allows a local attacker, by sending specially crafted service lookup requests to the NSS responder's UNIX socket, to cause an out-of-bounds read. This out-of-bounds read may lead to a denial of service (DoS) by crashing the NSS responder process. While unprivileged local clients can typically reach the socket, there is no evidence of privilege escalation or reliable data disclosure.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-90463
https://bugzilla.redhat.com/show_bug.cgi?id=2479268

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 16:17

Updated : 2026-09-14 17:17

NVD link : CVE-2026-90463

Mitre link : CVE-2026-90463

CVE.ORG link : CVE-2026-90463

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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