CVE-2026-118527: Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
Elevated⚠ Actively exploited (CISA KEV)
Elevated
Severity
Active
CISA KEV
No
Ransomware use
Nov 13, 2026
Patch deadline
⚠ Exploited in the wild. CISA added CVE-2026-118527 to its Known Exploited Vulnerabilities catalog on Oct 30, 2026, with a federal patch deadline of Nov 13, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.
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…
Details
AffectedIvanti · Connect Secure
WeaknessCWE-340
Added to CISA KEVOct 30, 2026
Federal patch deadlineNov 13, 2026
Known ransomware useNot documented
Frequently asked questions
Is CVE-2026-118527 being actively exploited?
Yes — CISA lists CVE-2026-118527 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
What does CVE-2026-118527 affect?
CVE-2026-118527 affects Ivanti · Connect Secure.
How do I fix CVE-2026-118527?
Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 13, 2026. Then check whether your personal data was exposed in any related breach.