CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , the same day the CVE record was published.
- How likely is exploitation in the next 30 days?
- 86.8%
EPSS score, percentile 99.7 of all scored records
- How severe?
- 8.6 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline . Apply mitigations in accordance with vendor instructions … Full text
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Unaffected 25.1.3.0; 25.1.3.1; 22.8R2.5; 22.7R2.14
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by 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 each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA due date for this action: .
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Unaffected | 25.1.3.0 |
| Unaffected | 25.1.3.1 |
| Unaffected | 22.8R2.5 |
| Unaffected | 22.7R2.14 |
Versions not listed are: affected.
Versions the record lists as unaffected: 25.1.3.0, 25.1.3.1, 22.8R2.5, 22.7R2.14.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2026-104935 to its Known Exploited Vulnerabilities (KEV) catalog on 13 Oct 2026.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 16 Oct 2026.
- The CVE record was published on 13 Oct 2026, the same day it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 8.6 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 86.8% (percentile 99.7), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
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.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
- CWE-290: Authentication bypass by spoofing
Attack patterns (CAPEC)
- CAPEC-115: Authentication Bypass
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CVE record last updated | |
| CISA due date for the required action |
References
More exploited Ivanti vulnerabilities
- CVE-2026-10520: Ivanti Sentry OS Command Injection Vulnerability
- CVE-2026-6973: Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
- CVE-2026-1340: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
- CVE-2026-1603: Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
- CVE-2026-1281: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
- CVE-2025-4427: Ivanti Endpoint Manager Mobile (EPMM) Authentication Bypass Vulnerability