CVE-2026-45771Patch(freeswitch / freeswitch)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch freeswitch freeswitch systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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 1.11.0, FreeSWITCH's bundled XML parser expands nested <!ENTITY> declarations without a depth or count bound, so a small DTD can describe a body that expands exponentially ("billion laughs"). The PIDF body of a SIP PUBLISH is fed to this parser before any digest check, letting an unauthenticated network attacker force unbounded CPU and memory consumption with a single request. This issue has been patched in version 1.11.0.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-776

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • freeswitch

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
freeswitch

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-29: 1Patch / Workaround · 2026-05-29: 1Technical Details · 2026-05-29: 105-29
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • Enable Security@enablesecurity
    Patch

    3/ On the vuln side: FreeSWITCH 1.11.0/1.11.1 fix an unauthenticated SIP PUBLISH DoS (CVE-2026-45771) and more; OpenSIPS shipped 12 advisories / 8 CVEs (3 critical); coturn and Janus got security updates too.

    Post summary

    The message summarizes recent security updates, noting that FreeSWITCH, OpenSIPS, coturn, and Janus have released patches that fix multiple CVEs, including an unauthenticated SIP PUBLISH DoS (CVE-2026-45771).

    10010128
    357 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appfreeswitchfreeswitch---

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