by Kastro
Paper/Archive/CVE-2026-18717

CVE-2026-18717

Applied Systems Engineering ASE2000 V2 — Improper Certificate Validation in ASE 2000

EPSS 0.3%CVSS 9.1
critical.is priorityof 100
31
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 19.7.197 × 203.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

ASE2000 2.35 through 2.37 is vulnerable to an improper certificate validation vulnerability, which may allow an attacker to impersonate the trusted peer, complete the TLS handshake, and read or modify protected communications.

Affected

ProductAffectedFixed inSource
ASE2000 V22.25 – 2.372.38CNA

Scores by source

icscert (CNA)9.1CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
icscert (CNA)7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refase-systems.comrefcisa.gov/news-events/ics-advisories/icsa-26-239-04refgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-239-04.json