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CVE-2019-3565

20
FAUCET Score

CVE-2019-3565 describes a denial-of-service vulnerability affecting legacy C++ Facebook Thrift servers (using cpp, not cpp2) prior to version 2019.05.06.00. Malicious clients could send short messages containing containers of unknown field types, causing prolonged parsing times and potential service disruption. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity, leading to high availability impact. There is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2019.05.06.00CPE matchmatch criteria
cpe:2.3:a:facebook:thrift:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.81%
Probability of exploitation in next 30 days
EPSS Percentile
85.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0281 is in the 73rd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / facebook/fbthrift/commit/01686e15ec77ccb4d49a77d5bce3a01601e54d64
PatchThird Party Advisory
lists.apache.org / thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
facebook.com / security/advisories/cve-2019-3565
Vendor Advisory
securityfocus.com / bid/108280
Third Party AdvisoryVDB Entry