CVE-2019-3552

C++ Facebook Thrift servers (using cpp2) would not error upon receiving messages with containers...

7.5 High

C++ Facebook Thrift servers (using cpp2) would not error upon receiving messages with containers of fields of unknown type. As a result, malicious clients could send short messages which would take a long time for the server to parse, potentially leading to denial of service. This issue affects Facebook Thrift prior to v2019.02.18.00.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.98%Up 0.9 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2019-3552
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-834, CWE-755
Updated: 2026-11-02

CVE List No score

Record: CVE-2019-3552
Weakness: CWE-834
Updated: 2026-11-02

EUVDEUVD-2019-13189 No score

Record: EUVD-2019-13189
Updated: 2026-11-03

GitHub AdvisoriesGHSA-h27g-g76x-xqpw No score

C++ Facebook Thrift servers (using cpp2) would not error upon receiving messages with containers...

Record: GHSA-h27g-g76x-xqpw
Weakness: CWE-20, CWE-755
Updated: 2026-11-02

OSV 7.5

Record: CVE-2019-3552
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2019-3552 7.5

Record: UBUNTU-CVE-2019-3552
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

facebook thrift

Affected packages

Affected packages
Package	Affected	Fixed
`hhvm` Ubuntu:16.04:LTS	All versions, plus listed versions 3.11.0+dfsg-13.11.1+dfsg-13.11.1+dfsg-1ubuntu1	None known
`hhvm` Ubuntu:18.04:LTS	All versions, plus listed versions 3.21.0+dfsg-23.21.0+dfsg-2build13.21.0+dfsg-2build23.21.0+dfsg-2build33.21.0+dfsg-2ubuntu2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-3552 is a high vulnerability (CVSS 7.5) in Facebook Thrift, published May 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.98%, the 80th percentile. No source names a fixed version.