Answer in brief
CVE-2026-15422 records a Critical severity (CVSS 9.1) vulnerability in SCTP needs to better-check INIT ACK chunk parameters. The current sources do not mark it as known exploited. The current feed maps illumos/illumos-gate (generic), OmniOS/OmniOS (generic), Triton Data Center/SmartOS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps illumos/illumos-gate (generic), OmniOS/OmniOS (generic), Triton Data Center/SmartOS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| illumos/illumos-gategeneric | >=a5407c02d5ed61b29481b9b71f1307d7ebec9e5c <53a3efdeff8e6745bbfb69c5360f94962fb79e75 | 53a3efdeff8e6745bbfb69c5360f94962fb79e75 |
| OmniOS/OmniOSgeneric | >=r151058 <r151058j || >=r151056 <r151056aj || >=r151054 <r151054bj || >=any <r151054 | r151058j, r151056aj, r151054bj, r151054 |
| Triton Data Center/SmartOSgeneric | >=any <202060709 | 202060709 |
Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-15422 records a Critical severity (CVSS 9.1) vulnerability in SCTP needs to better-check INIT ACK chunk parameters. The current sources do not mark it as known exploited. The current feed maps illumos/illumos-gate (generic), OmniOS/OmniOS (generic), Triton Data Center/SmartOS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps illumos/illumos-gate (generic), OmniOS/OmniOS (generic), Triton Data Center/SmartOS (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| illumos/illumos-gategeneric | >=a5407c02d5ed61b29481b9b71f1307d7ebec9e5c <53a3efdeff8e6745bbfb69c5360f94962fb79e75 | 53a3efdeff8e6745bbfb69c5360f94962fb79e75 |
| OmniOS/OmniOSgeneric | >=r151058 <r151058j || >=r151056 <r151056aj || >=r151054 <r151054bj || >=any <r151054 | r151058j, r151056aj, r151054bj, r151054 |
| Triton Data Center/SmartOSgeneric | >=any <202060709 | 202060709 |
Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.