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.

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Tue, 09 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
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 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 FreeSWITCH: Out-of-bounds memory access in core STUN attribute parsing
Weaknesses CWE-125
CWE-20
CWE-787
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-09T16:00:32.931Z

Reserved: 2026-05-30T04:17:43.095Z

Link: CVE-2026-49475

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-06-09T17:17:47.390

Modified: 2026-06-09T17:17:47.390

Link: CVE-2026-49475

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses