CVE-2026-104935, a high-severity authentication bypass + RCE vulnerability, was only partially discovered and patched in July, leaving an opening for threat actors to capitalize on.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday urged organizations to take steps to immediately update their Ivanti Connect Secure (ICS) appliances and deployments to the latest version following the disclosure of an actively exploited vulnerability. The security flaw, tracked as CVE-2026-104935 (CVSS score: 8.6), is a case of authentication bypass impacting ICS

Threat Actor UTA0576 Chains 3 Flaws to Execute Commands as Root Attackers are exploiting CVE-2026-104935 in Ivanti Connect Secure to bypass authentication and gain root access through a three-flaw exploit chain, targeting Active Directory credentials, BitLocker recovery keys and other secrets as researchers warn of wider enterprise compromise.

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Ivanti Connect Secure flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added an Ivanti Connect Secure FortiMail flaw, tracked as CVE-2026-104935 (CVSS score of 8.6), to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability is an authentication bypass issue caused by […]

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-96951 Microsoft Windows Command Injection Vulnerability CVE-2026-104935 Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.  Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied.  While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities . CISA will continue to add vulnerabilities to the catalog that meet the specified criteria .  Aware of an ex...

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 vulnerability, which allows remote, unauthenticated execution of arbitrary commands, to conduct credential theft and data exfiltration. CISA added CVE-2026-104935 to its Known Exploited Vulnerabilities (KEV) Catalog on Oct. 13, 2026.  CISA urges organizations with affected Ivanti Connect Secure appliances and deployments to immediately update to the latest version, as outlined in Ivanti’s Security Advisory Ivanti Connect Secure (CVE-2026-104935) . Organizations should also review the Ivanti Connect Secure 25.x Upgrade and Migration Compatibility Guide for detailed patching guidance for hardware and virtual appliance deployments. Ivanti Connect Secure version 22.8 reaches end of life on Jan. 31, 2027.   Organizations seeking to determine whether they were compromised will need to conduct network and memory forensics to identify evidence of exploitation. Note: Ivanti’s Integrity Checker Tool may not detect evidence of exploitation of CVE-2026-104935 because threat actor commands execute in memory.   If your organization suspects a compromise, CISA recommends implementing the following actions from Ivanti Connect Secure Recovery Procedures :  ...

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

Advisory at a Glance  Title  Chinese Government-linked Cyber Threat Actors Combine Automated and Hands-on Hacking Tools to Steal Sensitive Data  Original Publication  October 8, 2026   Executive Summary  Chinese government-linked cyber threat actors, enabled by the Integrity Technology Group, are combining automated scanning tools, large-scale botnets, and hands-on exploitation techniques to target and steal sensitive data from organizations worldwide, including US critical infrastructure sectors. These actors exploit vulnerabilities by using scanning tools, cross-site scripting attacks, and password spraying on Microsoft Exchange servers, while establishing persistence through VPN software and exfiltrating emails and credentials using scripts. To help mitigate against this activity, organizations should prioritize disabling unused services and ports, sanitizing web application inputs to prevent injection attacks, implementing multifactor authentication for all services, and applying timely patches to reduce risks of compromise.  Affected Products  CVE-2014-6278   CVE-2015-3306   CVE-2015-5477   CVE-2016-3081   CVE-2019-11510   CVE-2021-22205   CVE-2021-3199   CVE-2023-22894   Key Actions  ...