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CVE-2019-11938

25
FAUCET Score

CVE-2019-11938 describes a denial-of-service vulnerability in Facebook Thrift servers prior to version v2019.12.09.00. Malicious clients could send small messages that trigger disproportionately large memory allocations, leading to resource exhaustion. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and no user interaction, resulting in high availability impact. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2019.12.09.00CPE 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
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 66th percentile among its peer group of 51,485 CVEs.

Social Chatter

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/08c2d412adb214c40bb03be7587057b25d053030
PatchThird Party Advisory
github.com / facebook/fbthrift/commit/71c97ffdcb61cccf1f8267774e873e21ebd3ebd3
PatchThird Party Advisory
facebook.com / security/advisories/cve-2019-11938
Vendor Advisory