{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-49475: FreeSWITCH: Out-of-bounds memory access in core STUN attribute parsing","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-49475","status":"final","version":"1","initial_release_date":"2026-06-09T16:00:32.931Z","current_release_date":"2026-06-09T20:19:56.191Z","revision_history":[{"date":"2026-06-09T16:00:32.931Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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 version 1.11.0, a STUN packet whose declared attribute length is shorter than the structure the parser casts to causes the parser to read and write past the end of the attribute, producing an out-of-bounds memory access on the per-leg media buffer. This issue has been patched in version 1.11.0.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-49475 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-49475"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-49475"},{"category":"external","summary":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-9j6h-hc95-q926","url":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-9j6h-hc95-q926"},{"category":"external","summary":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.0","url":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.0"}]},"product_tree":{"branches":[{"category":"vendor","name":"signalwire","branches":[{"category":"product_name","name":"freeswitch","branches":[{"category":"product_version","name":"< 1.11.0","product":{"name":"signalwire freeswitch < 1.11.0","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:signalwire:freeswitch:\\<_1.11.0:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-49475","title":"FreeSWITCH: Out-of-bounds memory access in core STUN attribute parsing","notes":[{"category":"description","text":"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 version 1.11.0, a STUN packet whose declared attribute length is shorter than the structure the parser casts to causes the parser to read and write past the end of the attribute, producing an out-of-bounds memory access on the per-leg media buffer. This issue has been patched in version 1.11.0.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}