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Solution
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Workaround
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Tue, 09 Jun 2026 19:30:00 +0000
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| Metrics |
ssvc
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Tue, 09 Jun 2026 18:00:00 +0000
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| First Time appeared |
Signalwire
Signalwire freeswitch |
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| Vendors & Products |
Signalwire
Signalwire freeswitch |
Tue, 09 Jun 2026 16:30:00 +0000
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| 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 1.11.1, mod_verto's WebSocket frame loop intercepts a #-prefixed speed-test protocol (#SPU / #SPB / #SPE) before any authentication check. The declared payload size in #SPU was parsed with atoi() and only rejected non-positive values, so an unauthenticated peer could request up to INT_MAX bytes. The server then wrote roughly size * 10 bytes back during the download phase, on the order of 20 GB per request, yielding strong outbound bandwidth amplification from a short request. This issue has been patched in version 1.11.1. | |
| Title | FreeSWITCH: Pre-authentication bandwidth amplification via `mod_verto` speed-test frames | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-09T18:39:33.710Z
Reserved: 2026-06-01T18:50:36.057Z
Link: CVE-2026-49842
Updated: 2026-06-09T18:23:04.850Z
Status : Undergoing Analysis
Published: 2026-06-09T17:17:48.017
Modified: 2026-06-09T19:32:29.743
Link: CVE-2026-49842
No data.
OpenCVE Enrichment
Updated: 2026-06-09T17:45:10Z