Vulnerability Description
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().
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Eukaryot/sonic3air/commit/2492d1882cd2cf1cc1d7415729ce5c4fd68
- https://www.vulncheck.com/advisories/sonic-3-a-i-r-unbounded-memory-allocation-d
FAQ
What is CVE-2026-66733?
CVE-2026-66733 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 proc...
How severe is CVE-2026-66733?
CVE-2026-66733 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-66733?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.