CVE-2026-49847
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
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, a single unauthenticated WebSocket frame containing a deeply nested JSON document crashes the FreeSWITCH process via stack overflow, terminating all calls and sessions on the host. The recursion drives the worker thread's stack pointer into the stack guard page, raising SIGSEGV from the kernel before any usable write primitive develops. This issue has been patched in version 1.11.1.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0004
Percentile
0,1th
Updated
EPSS Score Trend (Last 6 Days)
674
Uncontrolled Recursion
DraftCommon Consequences
Security Scopes Affected:
Availability
Confidentiality
Potential Impacts:
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Read Application Data
Applicable Platforms
All platforms may be affected
Application
Freeswitch by Freeswitch
Version Range Affected
To
1.11.1
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/signalwire/freeswitch/releases/tag/v1.11.1
https://github.com/signalwire/freeswitch/security/advisories/GHSA-2v74-pcgh-75wg