CVE-2019-3563

CRITICALNVD 9.89.8—

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 63.0%
KEV: Not listed

Published

April 29, 2019

Last Modified

November 21, 2024

References (2)

cve-assign@fbhttps://github.com/facebook/wangle/commit/5b3bceca875e4ea4ed9d14c20b20ce46c92c13c6
af854a3a-2127-422b-91ae-364da2661108https://github.com/facebook/wangle/commit/5b3bceca875e4ea4ed9d14c20b20ce46c92c13c6

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 20:02 UTCEG score recompute
2026-05-27 20:02 UTCGHSA enrichment
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:47 UTCepss_batch

Frequently asked(5)

What is CVE-2019-3563?

CVE-2019-3563 is a critical vulnerability published on April 29, 2019. 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

When was CVE-2019-3563 disclosed?

CVE-2019-3563 was first published in the National Vulnerability Database on April 29, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-3563 actively exploited?

CVE-2019-3563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-3563?

CVE-2019-3563 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2019-3563?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-3563, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-3563

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Is Your Infrastructure Affected by CVE-2019-3563?

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CVE-2019-3563

📅 Published

🔄 Last Modified

🔗 References (2)