onyx

onyx --cves cve-2022-37451

CVE-2022-37451

HIGHPOCExim
score
<0.1
cvss
7.5
epss
3.3%
published
2022-08-06
kev added
—
first seen

Exim before 4.96 contains an invalid free caused by not using store_free after store_malloc in pam_converse in auths/call_pam.c, letting local attackers cause denial of service, exploit requires attacker to control memory allocation.

Timeline

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

events2022-08-06 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 3.3%2026-09-23: epss 3.3%2026-09-24: epss 3.3%2026-09-25: epss 3.3%2026-09-26: epss 3.3%2026-09-27: epss 3.3%2026-09-28: epss 3.3%2026-09-29: epss 3.3%2026-09-30: epss 3.3%2026-10-01: epss 3.3%2026-10-02: epss 3.3%2026-10-03: epss 3.3%2026-10-04: epss 3.3%2026-10-05: epss 3.3%2026-10-06: epss 3.3%2026-10-07: epss 3.3%2026-10-08: epss 3.3%2026-10-09: epss 3.3%2026-10-10: epss 3.3%2026-10-11: epss 3.3%2026-10-12: epss 3.3%2026-10-13: epss 3.3%2026-10-14: epss 3.3%2026-10-15: epss 3.3%2026-10-16: epss 3.3%2026-10-18: epss 3.3%2026-10-19: epss 3.3%2026-10-20: epss 3.3%2026-10-21: epss 3.3%3.3%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-763

References 10