VULNERABILITY INTELLIGENCE
CVE-2026-90463
CVSS score4 MEDIUM
EPSS probability0.15%
CISA KEVNot currently listed
Published2026-09-14
Last modified2026-09-16
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Description
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.
Weakness classification
- secalert@redhat.com: CWE-125