CVE-2026-118527: medium-severity vulnerability in Ivanti Connect Secure
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
Prioritize patching. It under exploitation confirmed by CISA.
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.
A flaw in Ivanti Connect Secure lets a logged-in user upload files whose content they control to a location on the server that is easy to predict. Because the file names are predictable, the uploaded files can be found and misused.
Use of predictable filenames (CWE-340) in Ivanti Connect Secure before 25.1.1.3 and 22.8R2.6 allows a remote attacker with valid authentication to write files with attacker-controlled content to a known on-disk location. The precondition is a valid authenticated session on an affected version. Rated MEDIUM (CVSS 4.3).
In the same product, most dangerous first.