VULNERABILITY INTELLIGENCE

CVE-2019-11921

CVSS score9.8 CRITICAL
EPSS probability2.08%
CISA KEVNot currently listed
Published2019-07-25
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An out of bounds write is possible via a specially crafted packet in certain configurations of Proxygen due to improper handling of Base64 when parsing malformed binary content in Structured HTTP Headers. This issue affects versions of proxygen prior to v2019.07.22.00.

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references