onyx

onyx --cves cve-2012-5671

CVE-2012-5671

MEDKEVExim
score
<0.1
cvss
6.8
epss
8.4%
published
2012-10-31
kev added
2013-02-21
first seen

Exim 4.70 through 4.80 contains a heap-based buffer overflow caused by the dkim_exim_query_dns_txt function in dkim.c, letting remote attackers execute arbitrary code via malicious DNS responses, exploit requires DKIM support enabled and specific ACL settings.

Timeline

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

events2012-10-31 — PublishedP2013-02-21 — Added to CISA KEVK2026-10-21 — Tracked by OnyxTscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 8.4%2026-09-23: epss 8.4%2026-09-24: epss 8.4%2026-09-25: epss 8.4%2026-09-26: epss 8.4%2026-09-27: epss 8.4%2026-09-28: epss 8.4%2026-09-29: epss 8.4%2026-09-30: epss 8.4%2026-10-01: epss 8.4%2026-10-02: epss 8.4%2026-10-03: epss 8.4%2026-10-04: epss 8.4%2026-10-05: epss 8.4%2026-10-06: epss 8.4%2026-10-07: epss 8.4%2026-10-08: epss 8.4%2026-10-09: epss 8.4%2026-10-10: epss 8.4%2026-10-11: epss 8.4%2026-10-12: epss 8.4%2026-10-13: epss 8.4%2026-10-14: epss 8.4%2026-10-15: epss 8.4%2026-10-16: epss 8.4%2026-10-18: epss 8.4%2026-10-19: epss 8.4%2026-10-20: epss 8.4%2026-10-21: epss 8.4%8.4%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Added to CISA KEV
  3. Tracked by Onyx

Weaknesses

CWE-119

References 16