{"api_version":"1","generated_at":"2026-11-07T04:51:56+00:00","cve":"CVE-2026-116574","urls":{"html":"https://cve.report/CVE-2026-116574","api":"https://cve.report/api/cve/CVE-2026-116574.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-116574","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-116574"},"summary":{"title":"FreeSWITCH: Off-by-one heap write in core XML serialization of four-byte UTF-8 sequences","description":"FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, switch_xml_ampencode() reserved only ten bytes for the widest numeric character reference produced from a four-byte UTF-8 sequence, omitting space for the terminating NUL. When remote-supplied text was serialized at the exact buffer-growth boundary, the terminator wrote one byte beyond the heap allocation. 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