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VulnerabilityKnown exploitedSeverity 4.3 medium
Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
CVE-2026-118527 · CISA KEV · October 30, 2026
Summary
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.
From CISA, quoted as published. Check the source before acting.
What to do
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 required action, quoted.
Affected products
| Vendor | Product |
|---|---|
| Ivanti | Connect Secure |
Why it's on these mode pages
- Maritime: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
- Pipeline: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
- Freight rail: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
- Passenger rail and transit: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
- Highway and motor carrier: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
- Postal and parcel: Vendor table: Ivanti (network and remote-access gear used in every mode, all modes) (matched by rule)
Change history
- November 9, 2026: First collected by Watch
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