CVE-2019-18863

MEDIUM

Mitel 6800/6900 SIP <5.1.0.2051 SP2 - Man-In-The-Middle

Title source: llm

Description

A key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 and earlier, could allow an attacker to launch a man-in-the-middle attack when SRTP is used in a call. A successful exploit may allow the attacker to intercept sensitive information.

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://www.mitel.com/support/security-advisories

Vendor Advisory x_refsource_confirm

https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-19-0006

Scores

CVSS v3 5.9

EPSS 0.0051

EPSS Percentile 39.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-326

Status published

Products (16)

mitel/6863i_firmware 5.1.0.2051 (2 CPE variants)

mitel/6863i_firmware < 5.1.0.2051

mitel/6865i_firmware 5.1.0.2051 (2 CPE variants)

mitel/6865i_firmware < 5.1.0.2051

mitel/6867i_firmware 5.1.0.2051 (2 CPE variants)

mitel/6867i_firmware < 5.1.0.2051

mitel/6869i_firmware 5.1.0.2051 (2 CPE variants)

mitel/6869i_firmware < 5.1.0.2051

mitel/6873i_firmware 5.1.0.2051 (2 CPE variants)

mitel/6873i_firmware < 5.1.0.2051

... and 6 more

Published Mar 02, 2020

Tracked Since Feb 18, 2026