Back
CVE-2019-11779
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of…
Medium6.5EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- eclipse
Description
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
The Eclipse Foundation · Eclipse Mosquitto
- affected 1.5.0 to 1.6.5 inclusive
References (10)
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-4137-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2019:2206 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2019:2247 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2019-4c69fb4cd7 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-8b83c261dd (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2019-d99e2329cb (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [debian-lts-announce] 20191026 [SECURITY] [DLA 1972-1] mosquitto security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-4570 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20191118 [SECURITY] [DSA 4570-1] mosquitto security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-11779)Record last updated .