CVE-2026-104935: Ivanti Connect Secure (High, CVSS 8.6)
- CVSS
- 8.6 High (v3.1)
- EPSS
- 86.8% chance of exploitation in the next 30 days (higher than 99.7% of CVEs)
- Exploited in the wild
- Yes, on CISA’s KEV list since Oct 13, 2026
- Public exploit
- Yes, reported in a Nuclei template and 5 GitHub repositories
- Weakness
- CWE-290
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L- Published
- Oct 13, 2026
- CISA fix-by date
- Oct 16, 2026 (for US federal agencies)
What it is
Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute arbitrary commands. This does not impact ICS version 22.7R2.14 or prior.
Description from the National Vulnerability Database.
What to do
CISA: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating
Check whether you run Ivanti Connect Secure, then apply the vendor’s fix or mitigation from the advisories below. Because this flaw is exploited or has public exploit code, treat it as urgent and check for signs of compromise, not just the patch level.
Advisories and fixes
ThreatRoundup coverage
Three Ivanti VPN Bugs Chained Into Root, No Password Needed
Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.