onyx

onyx --cves cve-2022-20866

CVE-2022-20866

HIGHPOCCisco ASA
score
<0.1
cvss
7.4
epss
17.9%
published
2022-08-10
kev added
—
first seen

Cisco ASA and FTD Software contain a logic error in RSA key handling on hardware platforms with hardware-based cryptography, allowing unauthenticated remote attackers to retrieve RSA private keys via side-channel attacks, exploit requires specific RSA key characteristics.

Timeline

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

events2022-08-10 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 17.4%2026-09-23: epss 17.4%2026-09-24: epss 17.4%2026-09-25: epss 17.4%2026-09-26: epss 17.4%2026-09-27: epss 17.4%2026-09-28: epss 17.4%2026-09-29: epss 17.4%2026-09-30: epss 17.4%2026-10-01: epss 17.4%2026-10-02: epss 17.4%2026-10-03: epss 17.4%2026-10-04: epss 17.9%2026-10-05: epss 17.9%2026-10-06: epss 17.9%2026-10-07: epss 17.9%2026-10-08: epss 17.9%2026-10-09: epss 17.9%2026-10-10: epss 17.9%2026-10-11: epss 17.9%2026-10-12: epss 17.9%2026-10-13: epss 17.9%2026-10-14: epss 17.9%2026-10-15: epss 17.9%2026-10-16: epss 17.9%2026-10-18: epss 17.9%2026-10-19: epss 17.9%2026-10-20: epss 17.9%2026-10-21: epss 17.9%17.9%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-203

References 1