CVE-2018-18764
moderate-risk
Published 2018-10-29
An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.
Do I need to act?
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0.38% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
37
/ 100
moderate-risk
Severity
31/34 · Critical
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal