# CVE-2026-90463

## Summary

- **CVE ID:** CVE-2026-90463
- **Severity:** MEDIUM
- **CVSS Score:** 4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
- **CWE:** CWE-125
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

No affected products listed.

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-90463)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2479268)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.10%
- **EPSS Percentile:** 1.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._