CVE-2019-3553

Name: CVE-2019-3553
Creator: NVD / NIST
Published: 2020-03-10T21:15:11.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2019-3553 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. C++ 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 2.08% chance of exploitation in the next 30 days.

Description

C++ 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 v2020.02.03.00.

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

2.08%

79.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Facebook	Thrift	< 2020.02.03.00

References

https://github.com/facebook/fbthrift/commit/3f156207e8a6583d88999487e954320dc18955e6Patch, Third Party Advisory
https://github.com/facebook/fbthrift/commit/c9a903e5902834e95bbd4ab0e9fa53ba0189f351Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-3553Vendor Advisory
https://github.com/facebook/fbthrift/commit/3f156207e8a6583d88999487e954320dc18955e6Patch, Third Party Advisory
https://github.com/facebook/fbthrift/commit/c9a903e5902834e95bbd4ab0e9fa53ba0189f351Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2019-3553Vendor Advisory

Timeline

Published: Mar 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3553?

How severe is CVE-2019-3553?

CVE-2019-3553 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3553?

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-2019-3553?

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

Scan your code now

Source: NVD / NIST