Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability

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• cpe ivanti/connect secure22.8
• vendor Ivanti Connect Secureversion unspecified

How to fix CVE-2026-104935

• Recommended remediation

  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.

• Official advisories

  • Canadian Centre for Cyber Security · cyber.gc.ca
  • CISA Cybersecurity Advisories · cisa.gov
  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • Nuclei Templates · github.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. 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.

2. 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

3. 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.

4. 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

Sources

• Canadian Centre for Cyber SecurityGovernment advisoryCVE-2026-104935

  Serial number: AV26-1035 Date: October 13, 2026 Updated: October 16, 2026 As of October 13, 2026, Ivanti is affected by vulnerabilities in the following products: Ivanti Connect Secure Version 25.1.1.1 and prior Version 25.2.2 and prior Version 22.8R2.4 and prior Ivanti Neurons P

  cyber.gc.ca
• CISA Cybersecurity AdvisoriesGovernment advisoryCVE-2026-104935

  CISA is aware of Ivanti’s disclosure of a newly exploited vulnerability, CVE-2026-104935 , affecting Ivanti Connect Secure versions 25.1.1.1 and prior, 25.1.2.2 and prior, and 22.8R2.4 and prior. CISA is aware of cyber threat actors exploiting this zero-day authentication bypass

  cisa.gov
• CISA KEVConfirmed exploitationCVE-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.orgVulnerability recordCVE-2026-104935

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-104935

  30-day exploitation probability 26.0%

  first.org
• Nuclei TemplatesDetection templateCVE-2026-104935

  CVE-2026-104935 has a public Nuclei detection template.

  github.com
• NIST NVDVulnerability recordCVE-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 DatabaseResearchCVE-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
• Cisco TalosVendor advisoryCVE-2026-104935

  Is the cybersecurity world really facing a "Bugmageddon?" Thor breaks down the latest CVE and KEV trends in the latest Threat Source newsletter.

  blog.talosintelligence.com
• VulnCheck KEVConfirmed exploitationCVE-2026-104935

  Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.

  vulncheck.com

References

• Vendor Advisory · hub.ivanti.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• VulnCheck exploitation evidence · volexity.com
• VulnCheck exploitation evidence · x.com

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.