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CVE record · CVE-2026-15422

SCTP needs to better-check INIT ACK chunk parameters

CVSS 9.1 CriticalCriticalEPSS 0.0088 · 59th percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: illumos) at 16 Jul 2026, 19:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
illumos illumos-gate
  • affected a5407c02d5ed61b29481b9b71f1307d7ebec9e5c to before 53a3efdeff8e6745bbfb69c5360f94962fb79e75 git
Other versions: affected
OmniOS OmniOS
  • affected r151058 to before r151058j custom
  • affected r151056 to before r151056aj custom
  • affected r151054 to before r151054bj custom
  • affected any to before r151054 custom
Other versions: affected
Triton Data Center SmartOS
  • affected any to before 202060709 custom
Other versions: affected
Identifiers
CVE-2026-15422
CNA
illumos
Weakness (CWE)
CWE-122 · CWE-787
Tags
Published
16 Jul 2026
Updated
17 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/S:P/AU:Y/R:U/V:C/RE:H/U:Red CNA (illumos)
  • CISA KEV Not listed.
  • EPSS 0.0088, the 59th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.