onyx

onyx --cves cve-2026-63292

CVE-2026-63292

HIGHPOCApache HTTP Server
score
16.1
cvss
7.5
epss
0.9%
published
2026-10-01
kev added
—
first seen

Apache HTTP Server through 2.4.68 contains a stack-based buffer overflow caused by an HTTP Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised, letting remote clients cause denial of service or execute arbitrary code.

Timeline

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

events2026-10-01 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 16.116.1epss2026-10-02: epss 0.6%2026-10-03: epss 0.6%2026-10-04: epss 0.6%2026-10-05: epss 0.6%2026-10-06: epss 0.9%2026-10-07: epss 0.9%2026-10-08: epss 0.9%2026-10-09: epss 0.9%2026-10-10: epss 0.9%2026-10-11: epss 0.9%2026-10-12: epss 0.9%2026-10-13: epss 0.9%2026-10-14: epss 0.9%2026-10-15: epss 0.9%2026-10-16: epss 0.9%2026-10-18: epss 0.9%2026-10-19: epss 0.9%2026-10-20: epss 0.9%2026-10-21: epss 0.9%0.9%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-121

References 2