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onyx --cves cve-2023-43622

CVE-2023-43622

HIGHPOCADV 1Apache HTTP Server
score
4.9
cvss
7.5
epss
68.8% ▼1.8
published
2023-10-23
kev added
—
first seen

Apache HTTP Server versions 2.4.55 through 2.4.57 contain a resource exhaustion caused by handling of HTTP/2 connections with initial window size 0, letting attackers exhaust server resources, exploit requires opening a crafted HTTP/2 connection.

Timeline

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

events2023-10-23 — PublishedP2026-10-21 — First advisory — CERT-FR (avis): Multiples vulnérabilités dans Oracle Weblogic (21 octobre 2026)A2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 4.94.9epss2026-09-22: epss 70.6%2026-09-23: epss 70.6%2026-09-24: epss 70.6%2026-09-25: epss 70.6%2026-09-26: epss 70.6%2026-09-27: epss 70.6%2026-09-28: epss 70.6%2026-09-29: epss 70.6%2026-09-30: epss 70.6%2026-10-01: epss 70.6%2026-10-02: epss 70.6%2026-10-03: epss 70.6%2026-10-04: epss 70.6%2026-10-05: epss 70.6%2026-10-06: epss 70.6%2026-10-07: epss 70.6%2026-10-08: epss 70.6%2026-10-09: epss 70.6%2026-10-10: epss 70.6%2026-10-11: epss 70.6%2026-10-12: epss 70.6%2026-10-13: epss 70.6%2026-10-14: epss 70.6%2026-10-15: epss 70.6%2026-10-16: epss 70.6%2026-10-18: epss 70.6%2026-10-19: epss 70.6%2026-10-20: epss 68.8%2026-10-21: epss 68.8%68.8%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. First advisory — CERT-FR (avis) Multiples vulnérabilités dans Oracle Weblogic (21 octobre 2026)
  3. Tracked by Onyx
  4. Public PoC

Advisories

1 feed this week

Exploit availability

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

Weaknesses

CWE-400

References 2