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CVE-2019-3558

25
FAUCET Score

CVE-2019-3558 describes a denial-of-service vulnerability affecting Facebook Thrift servers prior to version 2019.02.18.00. Malicious clients could send specially crafted, short messages containing unknown field types within containers, causing the server to expend excessive resources during parsing. This unauthenticated attack has a high severity CVSS score of 7.5, indicating a significant impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2019.02.18.00CPE 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
2.02%
Probability of exploitation in next 30 days
EPSS Percentile
78.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0202 is in the 63rd 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/c5d6e07588cd03061bc54d451a7fa6e84883d62b
PatchThird Party Advisory
lists.apache.org / thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
facebook.com / security/advisories/cve-2019-3558
Vendor Advisory
securityfocus.com / bid/108274
Broken Link