CVE-2026-83685
Microsoft — Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
Patch Tuesday
What EVULNABLE says
An EPSS probability of 0.011, and CVSS base score 6.5.
Monitor
The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.
The evidence behind it
| Measure | Value | Source | What it means |
|---|---|---|---|
| CVSS base score | 6.5 | — | How severe the flaw is in itself. It does not say how likely an attack is. |
| FIRST EPSS | 0.011 (66th pctl) | FIRST | FIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. |
| Actively exploited | Not confirmed | Patch Tuesday | Whether a source of record has confirmed attacks using it in the wild. |
2 days recorded, 2026-10-14 to 2026-10-15
1.14% as of 2026-10-15 (66th percentile). FIRST EPSS, recorded daily since this page started tracking it.
2026-10-14
2026-10-15
The primary records
This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.
Where this sits
CVE-2026-83685 is one of the entries ranked on the priority feed and in this month's Microsoft release.