Newly listed by CISAIvanti Connect SecureFirewalls, VPNs & network gear
Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
- What it is
- 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.
- Who's affected
- Anyone using Ivanti Connect Secure.
- Under attack?
- Yes. CISA added this to its catalog of actively exploited vulnerabilities on Oct 30, 2026.
- What to do
- Install the vendor's security update. If there isn't one yet, apply the vendor's workaround, or stop using the product until it's fixed. CISA lists this as actively exploited, so treat it as urgent.
- Fixed in
- See the vendor's advisory
- CISA deadline
- Federal agencies must fix this by Nov 13, 2026. Everyone else should treat that as a ceiling, not a target.
- CISA's instruction
- 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.
Attack timeline
- Oct 30, 2026CISA listed it as exploitedAdded to CISA's Known Exploited Vulnerabilities catalog.
- Nov 13, 2026+14 daysFederal fix deadlineU.S. agencies must have it fixed by this date.
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