onyx

onyx --cves cve-2023-20275

CVE-2023-20275

MEDCisco ASA
score
<0.1
cvss
4.1
epss
0.4%
published
2023-12-12
kev added
—
first seen

Cisco ASA and FTD Software contain a source IP address validation issue in the SSL VPN feature caused by improper validation of the packet's inner source IP address after decryption, letting authenticated remote attackers send packets with another VPN user's source IP address, exploit requires sending crafted packets through the tunnel.

Timeline

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

events2023-12-12 — PublishedP2026-10-21 — Tracked by OnyxTscore2026-10-21: score <0.1<0.1epss2026-09-22: epss 0.4%2026-09-23: epss 0.4%2026-09-24: epss 0.4%2026-09-25: epss 0.4%2026-09-26: epss 0.4%2026-09-27: epss 0.4%2026-09-28: epss 0.4%2026-09-29: epss 0.4%2026-09-30: epss 0.4%2026-10-01: epss 0.4%2026-10-02: epss 0.4%2026-10-03: epss 0.4%2026-10-04: epss 0.4%2026-10-05: epss 0.4%2026-10-06: epss 0.4%2026-10-07: epss 0.4%2026-10-08: epss 0.4%2026-10-09: epss 0.4%2026-10-10: epss 0.4%2026-10-11: epss 0.4%2026-10-12: epss 0.4%2026-10-13: epss 0.4%2026-10-14: epss 0.4%2026-10-15: epss 0.4%2026-10-16: epss 0.4%2026-10-18: epss 0.4%2026-10-19: epss 0.4%2026-10-20: epss 0.4%2026-10-21: epss 0.4%0.4%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx

Weaknesses

CWE-346 NVD-CWE-noinfo

References 1