October 30, 2026 · Applied Cybernetics Group
CVE-2026-118527 Ivanti Connect Secure
Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
- Added to KEV
2026-10-30- Federal due date
2026-11-13- Vendor
- Ivanti
- Product
- Connect Secure
- EPSS
- 57.5th percentile (score 0.008, as of
2026-11-06) - NVD CVSS v3.1
- 4.3 (MEDIUM)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-118527
CISA short description
Ivanti Connect Secure contains a generation of predictable numbers or identifiers vulnerability that allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk. This vulnerability can be chained with CVE-2026-104935 and CVE-2026-111357.
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.
NVD description
Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.