HIGH
An issue was discovered in Zammad 3.0 through 3.2
Published Mar 5, 2020
7.5
HIGHCVSS 3.1
EPSS 1.09%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.09% 0.01091
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01091
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.09% (0.01091) | 64.16th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.09% (0.01091) | 63.92th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00100) | 41.76th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00100) | 41.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00100) | 39.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.46% (0.05463) | 76.57th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.95% (0.01953) | 49.98th | v1 |
| Jan 6, 2022 | 1.95% (0.01953) | 49.47th | v1 |
| Jan 5, 2022 | 0.44% (0.00442) | 28.89th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.44% (0.00442) | 0.00th | v1 |
Weaknesses (2)
References (1)
- https://zammad.com/news/security-advisory-zaa-2020-06 x_refsource_MISCPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://zammad.com/news/security-advisory-zaa-2020-06 | x_refsource_MISCPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 5, 2020
Updated Aug 4, 2024
Reserved Mar 5, 2020
Link CVE-2020-10101
CISA Vulnrichment
Updated n/a