CVE-2019-11939

Name: CVE-2019-11939
Creator: NVD / NIST
Published: 2020-03-18T01:15:11.66+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2019-11939 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.52%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Facebook	Thrift	< 2020.03.16.00

References

https://github.com/facebook/fbthrift/commit/483ed864d69f307e9e3b9dadec048216100c0757Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-11939Vendor Advisory
https://github.com/facebook/fbthrift/commit/483ed864d69f307e9e3b9dadec048216100c0757Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-11939Vendor Advisory

Timeline

Published: Mar 18, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11939?

How severe is CVE-2019-11939?

CVE-2019-11939 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST