CVEs / CVE-2026-104935
CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
- Known exploited in the CISA KEV catalog since 13 Oct 2026
- high 8.6 CVSS 3.1 (from the CNA)
- EPSS 86.7% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.
Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| ivanti connect secure | from 25.1.0.0, before 25.1.1.2 | 25.1.1.2 |
| ivanti connect secure | from 25.1.2.0, before 25.1.3.0 | 25.1.3.0 |
| ivanti connect secure | 22.8 | — |
Exploitation
| In CISA KEV since | 13 Oct 2026 |
|---|---|
| Due date for US federal agencies | 16 Oct 2026 |
| Used in ransomware campaigns | Unknown |
| Required action | 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 each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. |
Severity
| CVSS 3.1 | 8.6 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:LScored by the CNA (3c1d8aa1-5a33-4ea4-8992-aadd6440af75) |
|---|---|
| Weakness | CWE-290 |
References
- CVE-2026-104935 on NVD
- CVE-2026-104935 in the CISA KEV catalog
- https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104935 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.