Known exploited vulnerability
CVE-2026-104935
The short answer
CVE-2026-104935 affects Ivanti Connect Secure and is rated high (CVSS 8.6). CISA added it to the Known Exploited Vulnerabilities catalog on 2026-10-13: attackers are using it, so patch it first.
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.
Weakness: CWE-290.
Severity
8.6 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Exploited (CISA KEV)
Yes, since Oct 13, 2026
Federal due date Oct 16, 2026
EPSS, next 30 days
89%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- Low
- Availability impact
- Low
What CISA says to do
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…
Affected products
Connect Secure. NVD's record lists the exact affected versions.
References
Questions
Is CVE-2026-104935 being exploited?
Yes. CISA added CVE-2026-104935 to its Known Exploited Vulnerabilities catalog on 2026-10-13, with a federal remediation due date of 2026-10-16.
How do I fix CVE-2026-104935?
CISA's 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…
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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