Is CVE-2026-49475 actively exploited?

No active exploitation of CVE-2026-49475 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-49475 be exploited remotely?

Yes. CVE-2026-49475 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-49475?

CVE-2026-49475 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-49475

HIGH

CVE-2026-49475

CWE-20Published: June 9, 2026· Updated: Jun 10, 2026

7.5

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:18.8th

Official 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, a STUN packet whose declared attribute length is shorter than the structure the parser casts to causes the parser to read and write past the end of the attribute, producing an out-of-bounds memory access on the per-leg media buffer. This issue has been patched in version 1.11.0.

NVD Source

Technical Analysis

CVE-2026-49475 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.