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Medium severity · published Sep 18, 2019
CVE-2019-11778
If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval,…
5.4
CVSS
0.8%
EPSS
No
On KEV
Description
If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Mosquitto · Eclipse
1.6 before 1.6.5 · source: NVD
Affected product
MO
Mosquitto
Eclipse
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11778
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11778
Vendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551162
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