onyx

onyx --cves cve-2019-14243

CVE-2019-14243

HIGHPOCHAProxy
score
<0.1
cvss
7.5
epss
4.3%
published
2019-07-23
kev added
—
first seen

mastercactapus proxyprotocol before 0.0.2 contains a denial of service caused by processing a crafted HAProxy PROXY v2 request with truncated address data in headerv2.go, letting remote attackers cause server panic and crash, exploit requires sending malicious request.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2019-07-23 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 4.3%2026-09-23: epss 4.3%2026-09-24: epss 4.3%2026-09-25: epss 4.3%2026-09-26: epss 4.3%2026-09-27: epss 4.3%2026-09-28: epss 4.3%2026-09-29: epss 4.3%2026-09-30: epss 4.3%2026-10-01: epss 4.3%2026-10-02: epss 4.3%2026-10-03: epss 4.3%2026-10-04: epss 4.3%2026-10-05: epss 4.3%2026-10-06: epss 4.3%2026-10-07: epss 4.3%2026-10-08: epss 4.3%2026-10-09: epss 4.3%2026-10-10: epss 4.3%2026-10-11: epss 4.3%2026-10-12: epss 4.3%2026-10-13: epss 4.3%2026-10-14: epss 4.3%2026-10-15: epss 4.3%2026-10-16: epss 4.3%2026-10-18: epss 4.3%2026-10-19: epss 4.3%2026-10-20: epss 4.3%2026-10-21: epss 4.3%4.3%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-20

References 6