What’s Vulnerable › Vulnerabilities

CVE-2019-3554

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-15 · updated 2026-06-17
• Weakness: CWE-400

Description

Wangle's AcceptRoutingHandler incorrectly casts a socket when accepting a TLS 1.3 connection, leading to a potential denial of service attack against systems accepting such connections. This affects versions of Wangle prior to v2019.01.14.00

Affected products

• Facebook Wangle: before 2019.01.14.00 — fixed in 2019.01.14.00

How to fix

Upgrade to a fixed version: Facebook Wangle 2019.01.14.00. Check the vendor advisory for mitigations.

References

• https://github.com/facebook/wangle/commit/3b17ba10a82c71e7808760e027ac6af687e06074
• https://github.com/facebook/wangle/commit/3b17ba10a82c71e7808760e027ac6af687e06074

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