CVE record · CVE-2026-15449

TOCTOU double copyin in illumos dld ioctl handling causes kernel heap corruption

CVSS 5.8 MediumEPSS 0.0012 · 1st percentile

Published by the CVE Program (CNA: illumos) at 16 Jul 2026, 19:27 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
Vendor	Product	Versions
illumos	illumos-gate	affected eae72b5b807baa9116e64502cbb278edf15f3146 to before 6959feb5b430411a4809b06c53dcdb42fb525eac git Other versions: affected
OmniOS	OmniOS	affected any to before r151054 custom affected r151058 to before r151058j custom affected r151056 to before r151056aj custom affected r151054 to before r151054bj custom Other versions: affected
Triton Data Center	SmartOS	affected any to before 202060709 custom Other versions: affected

Identifiers: CVE-2026-15449
CNA: illumos
Weakness (CWE): CWE-122 · CWE-367
Tags: illumos-gate
OmniOS
Triton Data Center SmartOS
Memory corruption
Race condition
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

Score	Rating	CVSS	Vector	Source
5.8	Medium	4.0	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (illumos)

CISA KEV Not listed.
EPSS 0.0012, the 1st percentile, on 13 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.