onyx

onyx --cves cve-2004-0399

CVE-2004-0399

HIGHPOCExim
score
<0.1
cvss
7.5
epss
20.5%
published
2004-07-07
kev added
—
first seen

Exim 3.35 and earlier versions contain a stack-based buffer overflow caused by sender verification when sender_verify option is true, letting remote attackers cause denial of service and possibly execute arbitrary code during sender verification.

Timeline

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

events2004-07-07 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 20.5%2026-09-23: epss 20.5%2026-09-24: epss 20.5%2026-09-25: epss 20.5%2026-09-26: epss 20.5%2026-09-27: epss 20.5%2026-09-28: epss 20.5%2026-09-29: epss 20.5%2026-09-30: epss 20.5%2026-10-01: epss 20.5%2026-10-02: epss 20.5%2026-10-03: epss 20.5%2026-10-04: epss 20.5%2026-10-05: epss 20.5%2026-10-06: epss 20.5%2026-10-07: epss 20.5%2026-10-08: epss 20.5%2026-10-09: epss 20.5%2026-10-10: epss 20.5%2026-10-11: epss 20.5%2026-10-12: epss 20.5%2026-10-13: epss 20.5%2026-10-14: epss 20.5%2026-10-15: epss 20.5%2026-10-16: epss 20.5%2026-10-18: epss 20.5%2026-10-19: epss 20.5%2026-10-20: epss 20.5%2026-10-21: epss 20.5%20.5%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

NVD-CWE-Other

References 6