SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-13863

The SAS portal of Mitel MiCollab before 9.1.3 could allow an attacker to access user data by performing a header injection in HTTP responses, due to the improper handling of input parameters.

HIGH 8.1EPSS 1.13%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The SAS portal of Mitel MiCollab before 9.1.3 could allow an attacker to access user data by performing a header injection in HTTP responses, due to the improper handling of input parameters. A successful exploit could allow an attacker to access user information.

CVSS 3.1
8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS
1.13% probability · 66th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-74
Affected
mitel/micollab
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.13%26 October 202626 October 2026

EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.