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CVE-2026-49475

HIGH
7.5
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-49475
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-30 04:17 UTC
Published
2026-06-09 16:00 UTC
Last updated
2026-06-09 20:19 UTC
Primary CWE
CWE-20
CWE-20: Improper Input Validation
Vendor / Product
signalwire / freeswitch
Sources
cve.org  ·  NVD

Severity & Metrics

7.5 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
signalwire freeswitch — < 1.11.0
Weakness (CWE)
CWESourceDescription
CWE-125 cna CWE-125: Out-of-bounds Read
CWE-20 cna CWE-20: Improper Input Validation
CWE-787 cna CWE-787: Out-of-bounds Write
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.5 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References (2)
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