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CVE-2026-49840

CRITICAL · CVSS 9.1 EPSS %0.31 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-09T17:17:47.703 · Çekilme zamanı: 2026-06-30T12:14:56.351803+00:00

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Detaylı analiz gerekiyor.

Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-49840
Severity
CRITICAL
CVSS
9.1
EPSS
%0.31

Orijinal NVD Açıklaması

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, esl_recv_event() parses Content-Length with atol() and passes the result straight to malloc(len + 1) with no sign or magnitude check. A malicious or man-in-the-middle ESL peer can send a frame with a negative Content-Length to corrupt the heap of, or crash, any process linked against libesl, before the client has authenticated to that peer. This issue has been patched in version 1.11.1.