The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8
Published Jun 5, 2018
5.3
MEDIUMCVSS 3.0
EPSS 1.47%
Description
The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<=1.4.15
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| The Eclipse Foundation | Eclipse Mosquitto | n/a |
|
Configuration 2
- 8.0
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:S/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.47% (0.01467) | 72.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.45% (0.01454) | 69.95th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.60% (0.00602) | 67.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.53% (0.00528) | 77.77th | v3 (v2023.03.01) |
| Mar 13, 2024 | 0.53% (0.00528) | 76.49th | v3 (v2023.03.01) |
| Dec 30, 2023 | 0.53% (0.00528) | 74.48th | v3 (v2023.03.01) |
| Oct 27, 2023 | 0.58% (0.00578) | 75.56th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.81% (0.00812) | 79.62th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.89% (0.00890) | 80.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.55% (0.01550) | 33.66th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.55% (0.01550) | 0.00th | v1 |
References (5)
- http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdf x_refsource_MISCThird Party Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00036.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://usn.ubuntu.com/4023-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.debian.org/security/2018/dsa-4325 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdf | x_refsource_MISCThird Party Advisory | |
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00036.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://usn.ubuntu.com/4023-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.debian.org/security/2018/dsa-4325 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.