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TI-2026-47391 Aliases CVE-2026-66733GHSA-947v-gcqq-82hv

Sonic 3 A.I.R. Unbounded Memory Allocation DoS via ReceivedPacketCache

Priority MEDIUM 47CWE-789Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-789.

Summary

Sonic 3 A.I.R. before commit 2492d18 contains an unbounded memory allocation vulnerability in ReceivedPacketCache::enqueuePacket() that allows unauthenticated remote attackers to crash the server process by sending a crafted UDP packet with mUniquePacketID set to the maximum uint32 value. The mUniquePacketID field is read directly from the UDP wire-format packet header without bounds checking, causing the server to allocate one CacheItem per missing packet ID gap, exhausting available host memory and propagating an uncaught std::bad_alloc exception to std::terminate().

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01552 75th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Eukaryotsonic3airup to 26.03.28.0—Patch availableCNA
  • sonic3air VendorEukaryot Affected up to 26.03.28.0 Fixed in — Patch available CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-66733
  2. 2026-10-03 Alias added: GHSA-947v-gcqq-82hv

References

Patch 1

  • TI-2026-47390 Sonic 3 A.I.R. Missing Source Address Validation in ConnectionManager CVSS 4.0HIGH 8.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences