freeswitch vulnerabilities
CVEs whose affected-version data names the freeswitch package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
21 CVEsRSS
CVE-2026-116568High· 7.5FreeSWITCH: Out-of-bounds read in mod_rtmp H.264 video message parsing
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 1.11.2, rtmp_rtmp2rtpH264() trusted the lengt…
CVE-2026-116787High· 7.5FreeSWITCH: Pre-authentication process termination in the Event Socket via an unbounded Content-Length
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 1.11.2, mod_event_socket used an unauthentica…
CVE-2026-116572Medium· 6.5FreeSWITCH mod_sofia: stack buffer overflow from an over-long SIP Contact display-name
FreeSWITCH is an open-source software telecommunications platform. From 1.10.0 to 1.11.1, there is a stack-based buffer overflow in mod_sofia when processing SIP Contact display names for dialog-event notifications. A peer can establis…
CVE-2026-116573Medium· 6.5FreeSWITCH mod_sofia: stack buffer overflow from an over-long SIP To-header user
FreeSWITCH is an open-source software telecommunications platform. From 1.10.0 until 1.11.1, a stack-based buffer overflow in mod_sofia when generating dialog-event notifications. A peer can establish a dialog with an excessively long …
CVE-2026-116784High· 7.5FreeSWITCH: Out-of-bounds read in RTCP NACK feedback parsing
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 1.11.2, process_rtcp_report() used an RTPFB N…
CVE-2026-116782High· 7.5FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handling
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 1.11.2, rtmp_i_connect() passed the first RTM…
CVE-2026-116783High· 8.2FreeSWITCH mod_spandsp: out-of-bounds write parsing UDPTL error-recovery data
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 1.11.2, udptl_rx_packet() used a peer-control…
CVE-2026-116790Critical· 9.1FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying STUN MESSAGE-INTEGRITY
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 1.11.2, FreeSWITCH's inbound ICE handling acc…
CVE-2026-116788High· 8.2FreeSWITCH: Pre-authentication heap buffer overflow in core XML empty-entity decoding
FreeSWITCH is an open-source software telecommunications platform. Before version 1.11.2, an integer underflow in switch_xml_decode() can cause an undersized heap allocation when an XML document declares an entity with an empty replace…
CVE-2026-116780Low· 2.7FreeSWITCH: Heap out-of-bounds read in FreeSWITCH core variable expansion via `${variable:offset}` slicing
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 1.11.2, switch_event_expand_headers_check() a…
CVE-2026-116779Critical· 9.8PoCFreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commands
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 1.11.3, sofia_presence_handle_sip_i_message()…
CVE-2026-116781Medium· 5.3FreeSWITCH: Pre-authentication out-of-bounds writes in mod_xml_rpc WebSocket frame parsing
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 1.11.2, ws_read_frame() unmasked a WebSocket …
CVE-2026-116789High· 7.4FreeSWITCH: DTLS-SRTP peer certificate is not bound to the SDP fingerprint when FreeSWITCH is the DTLS server
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 1.11.2, dtls_state_setup() compared a peer ce…
CVE-2026-116785Critical· 9.1FreeSWITCH: Pre-authentication heap out-of-bounds write in mod_xml_rpc WebSocket frame length handling
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 1.11.2, ws_read_frame() decoded a WebSocket f…
CVE-2026-116786High· 8.8FreeSWITCH: Channel-variable injection via SIP REFER leads to command execution in mod_sofia
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 1.11.2, sofia_handle_sip_i_refer() placed raw…
CVE-2026-116567High· 7.5FreeSWITCH: Pre-authentication stack buffer overflow in mod_rtmp control-message handling
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 1.11.2, rtmp_handle_control() rendered an RTM…
CVE-2026-116571Medium· 5.9FreeSWITCH: Stack buffer overflow in mod_rtmp AVC sequence-header construction
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 1.11.2, rtmp_rtp2rtmpH264() built an AVC deco…
CVE-2026-116570High· 7.5FreeSWITCH: Pre-authentication stack buffer overflow in mod_xml_rpc HTTP directory authentication
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 1.11.2, http_directory_auth() rebuilt an expe…
CVE-2026-116569High· 7.5FreeSWITCH: Pre-authentication out-of-bounds write in MSRP message body parsing
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 1.11.2, msrp_parse_buffer() subtracted delimi…
CVE-2026-115928High· 7.5FreeSWITCH: Stack buffer overflow parsing the SDP a=crypto key material on inbound calls
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 1.11.2, switch_core_media_add_crypto() passed…
CVE-2026-116574Medium· 5.9FreeSWITCH: Off-by-one heap write in core XML serialization of four-byte UTF-8 sequences
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 1.11.2, switch_xml_ampencode() reserved only …