ervik.as
Back to CVE database

CVE-2026-90996

medium · CVSS 4Published 9/14/2026 at 04:17 PMCWE-191

A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security S…

A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.

Why it matters

Internet-facing
Not identified as a common internet-facing category
Exploitation likelihood
medium
  • Requires local access, limiting mass exploitation
  • Low attack complexity — no special conditions needed to exploit
  • No authentication required
  • No user interaction needed — can be exploited automatically
Recommended mitigation

Apply the vendor patch as soon as it's available or already released.

This analysis is generated from structured CVSS vector data, CISA KEV cross-referencing, and vendor/product category rules — not a manual expert review. Treat it as a starting point, not a substitute for your own assessment.

CVSS Vector Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Local
Complexity
Low
Privileges Req.
None
User Interaction
None

EU Vulnerability Database (ENISA)

EUVD ID
EUVD-2026-77590
View on EUVD

EUVD is ENISA's EU vulnerability database, still in beta. EPSS is a probabilistic exploitation-likelihood score, not a certainty.

View official CVE record

Stay Updated

New CVEs and vulnerability advisories are added continuously as they're disclosed. Subscribe via RSS to get every update the moment it's published — no email or account required.

Subscribe via RSS
Share Share
Advertisement