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Back to active CVEs
High · CVSS 7.5CVE-2026-116782

FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handlingCVE-2026-116782

Answer in brief

CVE-2026-116782 records a High severity (CVSS 7.5) vulnerability in FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handling. The current sources do not mark it as known exploited. The current feed maps signalwire/freeswitch (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps signalwire/freeswitch (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
signalwire/freeswitchgeneric<1.11.21.11.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for signalwire/freeswitch.
  2. 2Review the reported fix. Update signalwire/freeswitch to 1.11.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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 1.11.2, rtmp_i_connect() passed the first RTMP connect argument to amf0_object_get() without checking whether the AMF value was an object. A string or number in place of an AMF object caused union bytes from the message to be interpreted as node pointers and dereferenced. Any client with network access to an enabled mod_rtmp listener could send the malformed connect command before login; the module is disabled in the stock build and configuration. The invalid read reliably crashes FreeSWITCH and ends every active call, while no write, memory disclosure, or code execution has been demonstrated. This issue is fixed in version 1.11.2.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • FastNetMon: IPv6 Fragment header dereferenced without bounds check in shared packet parserAlso CWE-125
  • FastNetMon: Legacy pcap parse_packet() has no bounds checking, causing out-of-bounds read on truncated framesAlso CWE-125
  • FastNetMon: NetFlow v9 unbounded strlen() on interface-description field causes remote out-of-bounds readAlso CWE-125
  • FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds readAlso CWE-125

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125, CWE-843
Source
CVE List V5
Source checked
Nov 5, 2026
References
3 linked sources
Open source record