Published Mar 18, 2020Sources checked Oct 24, 2026
7.5HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2019-11939 and is rated High severity with a CVSS score of 7.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CISA KEVNot listedBased on the latest collected catalog
EPSS1.6%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2019-11939?
Golang Facebook Thrift servers would not error upon receiving messages declaring containers of sizes larger than the payload. As a result, malicious clients could send short messages which would result in a large memory allocation, potentially leading to denial of service.
This issue affects Facebook Thrift prior to v2020.03.16.00.