{"id":"CVE-2026-66733","state":"PUBLISHED","title":"Sonic 3 A.I.R. Unbounded Memory Allocation DoS via ReceivedPacketCache","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().","publishedAt":"2026-08-06T12:58:05.286Z","updatedAt":"2026-08-06T17:54:02.677Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["Eukaryot sonic3air"],"affected":[{"vendor":"Eukaryot","product":"sonic3air","packageURL":"pkg:github/Eukaryot/sonic3air","defaultStatus":"affected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"26.03.28.0","versionType":"custom"},{"version":"2492d1882cd2cf1cc1d7415729ce5c4fd686cd4f","status":"unaffected","versionType":"git"}],"repo":"https://github.com/Eukaryot/sonic3air"}],"references":["https://github.com/Eukaryot/sonic3air/commit/2492d1882cd2cf1cc1d7415729ce5c4fd686cd4f","https://www.vulncheck.com/advisories/sonic-3-a-i-r-unbounded-memory-allocation-dos-via-receivedpacketcache"],"weaknesses":["CWE-789"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/66xxx/CVE-2026-66733.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66733","state":"PUBLISHED","datePublished":"2026-08-06T12:58:05.286Z","dateUpdated":"2026-08-06T17:54:02.677Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-27T16:27:47.647Z"},"containers":{"cna":{"title":"Sonic 3 A.I.R. 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