Cybersecurity
Ivanti patches two Connect Secure flaws after exploit
Volexity said an attacker chained three zero-day flaws in Ivanti Connect Secure to gain root on a fully patched appliance, while Ivanti said two fixes were out and a third was pending.
- Volexity said on 13 October that an attacker chained three zero-day flaws in Ivanti Connect Secure to run commands as root without logging in.
- Volexity found the attack on one customer’s appliance, which it said was fully patched and running version 22.8R2.4.
- Ivanti said it was aware of limited exploitation in the wild and had released fixes for two flaws, with a fix for the third still pending.
- The U.S. Cybersecurity and Infrastructure Security Agency marked exploitation as active in its CVE record for CVE-2026-104935.
Volexity said it found the attack on one customer’s Ivanti Connect Secure appliance. The firm said the device was fully patched and running version 22.8R2.4, and that the attacker it tracks as UTA0576 began activity on 3 October.
Volexity said the attack used three flaws together. It described the first two as an authentication bypass and a remote code execution issue grouped as CVE-2026-104935, which let code run as the appliance’s cgi-server user, and said a third privilege-escalation flaw raised that access to root.
Ivanti said its CVE record showed Connect Secure versions before 25.1.3.0 were affected, while 22.7R2.14 or earlier was not affected and 22.8R2.5, 25.1.3.0 and 25.1.3.1 were listed as unaffected. Ivanti said it had fixed two of the flaws and was working on a future release for the third.
Ivanti told customers to upgrade and use its Integrity Checker Tool. Volexity said that tool would not catch this chain because the exploit changed library code only in memory and restored the configuration data it altered.
In the incident Volexity investigated, the attacker stole stored credentials, including LDAP domain credentials, searched Active Directory for passwords and ran password-spraying attacks. Volexity said no backdoor or web shell was left behind, and that the attacker reran the full chain for each command. It assessed with low confidence that UTA0576 was criminal rather than espionage, and neither company said how many customers were affected.
Named in this story
Companies
- Ivanti
- released fixes for two flaws and advised customers to upgrade
- Volexity
- found the attack and reported the flaws to Ivanti
Organisations
- UTA0576
- the attacker Volexity tracked
Governments and agencies
- U.S. Cybersecurity and Infrastructure Security Agency
- marked exploitation as active in the CVE record
Products and systems
- Ivanti Connect Secure
- the VPN appliance targeted in the attack
- Integrity Checker Tool
- Ivanti’s tool for checking appliance integrity
- Active Directory
- was searched for passwords in the incident
- Xtraction
- had fixes covered in the same Ivanti post
- Neurons Patch for Intune
- had fixes covered in the same Ivanti post
How the source tells it
Mostly plain technical reporting, with a light urgent edge from Ivanti’s warning to upgrade immediately.
- urgency vendor advice to act immediately and the repeated stress on active exploitation