CVE-2026-104935
Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
Published Oct 13, 2026 · updated Oct 13, 2026 · Ivanti Connect Secure
Overview On October 13, 2026, Ivanti published a security advisory for CVE-2026-104935 , a high-severity authentication bypass by spoofing ( CWE-290 ) affecting Ivanti Connect Secure (ICS). The vulnerability has a CVSSv3.0 score of 8.6 and allows a remote, unauthenticated attacker to execute arbitrary commands. Ivanti reports that exploitation in the wild has already occurred prior to disclosure, affecting a limited number of customers. This indicates that exploitation has been occurring as a zero-day vulnerability. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) confirms expl
Timeline
Detection, updates, and resolution for this record.
Oct 13, 2026 · Catalog
Detected
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.
Oct 13, 2026 · CISA KEV
Known exploited
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
Oct 13, 2026 · Catalog
Updated
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.
Oct 16, 2026 · CISA KEV
Remediation due
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
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.
CISA due date Oct 16, 2026
Affected
- cpe ivanti/connect secureversion unspecified
- cpe ivanti/connect secure22.8
- vendor Ivanti Connect Secureversion unspecified
Sources
- CISA KEVCVE-2026-104935
Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.
cisa.gov - CVE.orgCVE-2026-104935
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-104935
30-day exploitation probability 26.0%
first.org - NIST NVDCVE-2026-104935
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.
nvd.nist.gov - Rapid7 Vulnerability DatabaseCVE-2026-104935
Overview On October 13, 2026, Ivanti published a security advisory for CVE-2026-104935 , a high-severity authentication bypass by spoofing ( CWE-290 ) affecting Ivanti Connect Secure (ICS). The vulnerability has a CVSSv3.0 score of 8.6 and allows a remote, unauthenticated attacker to execute arbitrary commands. Ivanti reports that exploitation in the wild has already occurred prior to disclosure,
rapid7.com