Vulnerability in Ivanti Connect Secure
CVE-2026-118527
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Ivanti Connect Secure — versions 22.8
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
References
- 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 (Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2026-118527?
- CVE-2026-118527 is a medium-severity vulnerability in Ivanti Connect Secure, classified under CWE-340. CVSS score: 4.3/10. Published 2026-11-03.
- How severe is CVE-2026-118527?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2026-118527 known to be exploited?
- Yes. CVE-2026-118527 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-10-30), indicating it is being actively exploited.