CVE-2020-10101

HIGH

Zammad < 3.2.0 - Improper Exception Handling

Title source: rule

Description

An issue was discovered in Zammad 3.0 through 3.2. The WebSocket server crashes when messages in non-JSON format are sent by an attacker. The message format is not properly checked and parsing errors not handled. This leads to a crash of the service process.

References (1)

[Patch, Vendor Advisory] https://zammad.com/news/security-advisory-zaa-2020-06

Scores

CVSS v3 7.5

EPSS 0.0069

EPSS Percentile 71.6%

Attack Vector NETWORK

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

Classification

CWE

CWE-755 CWE-20

Status published

Affected Products (1)

zammad/zammad < 3.2.0

Timeline

Published Mar 05, 2020

Tracked Since Feb 18, 2026