What’s Vulnerable › Vulnerabilities

CVE-2019-3563

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-29 · updated 2026-06-17
• Weakness: CWE-126

Description

Wangle's LineBasedFrameDecoder contains logic for identifying newlines which incorrectly advances a buffer, leading to a potential underflow. This affects versions of Wangle prior to v2019.04.22.00

Affected products

• Facebook Wangle: before 2019.04.22.00 — fixed in 2019.04.22.00

How to fix

Upgrade to a fixed version: Facebook Wangle 2019.04.22.00. Check the vendor advisory for mitigations.

References

• https://github.com/facebook/wangle/commit/5b3bceca875e4ea4ed9d14c20b20ce46c92c13c6
• https://github.com/facebook/wangle/commit/5b3bceca875e4ea4ed9d14c20b20ce46c92c13c6

Get alerted when CVE-2019-3563 or the next vulnerability affects your stack