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CVE details

CVE-2026-116573

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 SIP To-header user part and subsequently subscribe to that entity’s dialog events, causing the stored value to overflow a fixed-size stack buffer. Exploitation requires presence or shared-appearance management to be enabled and normally requires valid profile credentials, unless subscription authentication is disabled. The overflow can terminate the FreeSWITCH process and all active calls. This vulnerability is fixed in version 1.11.2.

Score
6.5 medium
Published
2026-11-05
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
net/freeswitchfreeswitch1.11.1_3unaddressedpi@FreeBSD.org

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Ranges per package from the CVE rows that match this port, in pkg notation with the port's epoch and revision, every bound checked with pkg; one range per epoch the port actually had. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>freeswitch -- FIXME</topic>
    <affects>
      <package>
	<name>freeswitch</name>
	<range><lt>1.11.2</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>CVE-2026-116573: 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 SIP To-header user part and subsequently subscribe to that
	  entity’s dialog events, causing the stored value to overflow a
	  fixed-size stack buffer. Exploitation requires presence or shared-
	  appearance management to be enabled and normally requires valid
	  profile credentials, unless subscription authentication is
	  disabled. The overflow can terminate the FreeSWITCH process and all
	  active calls. This vulnerability is fixed in version 1.11.2.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-116573</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-116573</url>
    </references>
    <dates>
      <discovery>2026-11-05</discovery>
      <entry>2026-11-05</entry>
    </dates>
  </vuln>