CVE-2026-15422

The illumos SCTP inbound path performs association lookup for INIT ACK chunks without adequately validating the address parameters carried in the chunk. Since this lookup runs during packet classification (i.e. before SCTP integrity checks or IPsec policy are applied) a remote, unauthenticated attacker can send a crafted SCTP INIT ACK packet with malformed address parameters to cause an out-of-bounds access and kernel heap corruption, which may lead to remote code execution. The flaw has existed since 2010 (illumos-gate commit a5407c02), and affects any illumos distribution prior to illumos-gate commit 53a3efde.

CVSS

No CVSS.

References

Link	Resource
https://github.com/illumos/illumos-gate/commit/53a3efdeff8e6745bbfb69c5360f94962fb79e75
https://illumos.org/issues/18117
https://illumos.topicbox.com/groups/developer/Ta1a8e2e1f7f928df/18117-sctp-needs-to-better-check-init-ack-chunk-parameters

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-16 20:16

Updated : 2026-07-17 18:45

NVD link : CVE-2026-15422

Mitre link : CVE-2026-15422

CVE.ORG link : CVE-2026-15422

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

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