Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
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.
What happened
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.
CISA lists it as exploited, added 30 Oct 2026.
Does it affect you
Names Ivanti Connect Secure. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
hub.ivanti.com - 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.gov
CISA’s notes for this entry:
- hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935?language=en_US
- BOD 26-04: cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- Forensics Triage Requirements: cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- nvd.nist.gov/vuln/detail/CVE-2026-118527
Affected, as published to NVD
- ivanti-cs
- Ivanti Connect Secure: exactly 22.8
The record
- NVD status
- Analyzed
- Published
- 03 Nov 2026, last modified 03 Nov 2026 (NVD)
- Severity
- CVSS 3.1 base score 4.3, Medium — computed here from the vector; NVD states 4.3.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-340 (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 30 Oct 2026; federal remediation due 13 Nov 2026. CISA entry
- Vendor
- Ivanti · Connect Secure (CISA)
References on the NVD record
Reporting that names this identifier
- CISA to federal agencies: Remediate exploited Ivanti Connect Secure vulnerabilities (CVE-2026-111357, CVE-2026-118527) — Help Net Security, 2 d ago
- Ivanti Patches Two More Zero-Days Exploited in Connect Secure Attack Chain — SecurityWeek, 2 d ago
- CISA Adds Two Known Exploited Vulnerabilities to Catalog — CISA, 5 d ago
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.