{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-101307", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2026-09-28T13:33:02.323Z", "datePublished": "2026-10-15T07:05:02.295Z", "dateUpdated": "2026-10-15T16:48:11.023Z" }, "containers": { "cna": { "datePublic": "2026-10-14T18:45:00.000Z", "title": "Remotely triggerable buffer overflow in tcp_rack", "references": [ { "tags": [ "vendor-advisory" ], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:70.tcp.asc" } ], "affected": [ { "defaultStatus": "unknown", "modules": [ "tcp" ], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [ { "status": "affected", "versionType": "release", "version": "15.1-RELEASE", "lessThan": "p5" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Raffaele Bova at Nozomi Networks Security Research" } ], "descriptions": [ { "lang": "en", "value": "When the PCM sample array needs to grow, the RACK stack doubles a 16-bit allocation counter. Repeated doublings caused the counter to wrap to zero, resulting in a near-zero-length allocation followed by a copy of the existing samples into the undersized buffer. A remote peer can trigger the expansion by sending a sufficient number of ACKs on an established connection.\n\nA remote attacker who can establish a TCP connection to a system using the RACK stack can trigger an out-of-bounds write of approximately 512 KB in the kernel heap possibly resulting in a kernel panic." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-122", "description": "CWE-122: Heap-based Buffer Overflow", "lang": "en", "type": "CWE" }, { "cweId": "CWE-787", "description": "CWE-787: Out-of-bounds Write", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-10-15T07:05:02.295Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "cvssV4_0": { "version": "4.0", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-15T15:31:46.531780Z", "id": "CVE-2026-101307", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T16:48:11.023Z" } } ] } }