CVE-2026-111357: Ivanti Connect Secure Missing Authentication for Critical Function Vulnerability

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• Yes, if you run Ivanti Connect Secure. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-10-30, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-11-02; treat that as the outer limit, not the target.
• EPSS 0.5%, percentile 45: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 45% of all scored CVEs (low). EPSS is a probability, not a verdict.
• Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
• Editorial verdict: Act now. Ivanti Connect Secure CVE-2026-104935 Chain: Patch Again — Upgrade Connect Secure again, even if you patched on October 13, because the root escalation fixed on October 29 is exploited and in KEV; then investigate with memory and network forensics, since the Integrity Checker missed this chain.

What it is

Ivanti Connect Secure 22.8R2.4 mishandles the manner in which the dsinvoked broker trusts DSCache configuration data, leading to privilege escalation to root, as exploited in the wild in October 2026.

CISA’s summary

Ivanti Connect Secure contains a missing authentication for critical function vulnerability that could allow a local authenticated attacker to escalate their privileges. This vulnerability can be chained with CVE-2026-104935 and CVE-2026-118527.

Weakness type: CWE-829, CWE-306, CWE-862, CWE-345.

Product: Ivanti Connect Secure · Assigned by: mitre · Published: 2026-10-15

Affected and fixed versions

Severity scores

• Attack vector: local access needed
• Attack complexity: high (needs special conditions)
• Privileges required: low (any account)
• User interaction: none
• Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: added 2026-10-30; federal due date 2026-11-02. Known ransomware use: Unknown.
• CISA 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.
• CISA SSVC assessment: exploitation active, automatable no, technical impact total.
• FIRST EPSS (model of 2026-11-04): 0.53% probability of exploitation activity in the next 30 days; percentile 45.

Timeline

• 2026-10-13 — erroneo.us brief: Ivanti Connect Secure CVE-2026-104935 Chain: Patch Again
• 2026-10-15 — CVE record published by mitre
• 2026-10-30 — Added to CISA’s Known Exploited Vulnerabilities catalog
• 2026-10-31 — CVE record last updated
• 2026-11-02 — CISA remediation deadline for US federal agencies

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. Listed in CISA KEV notes (hub.ivanti.com) hub.ivanti.com

Vulnerability records

1. CVE.org record CVE-2026-111357 cve.org
2. NVD entry CVE-2026-111357 nvd.nist.gov

Government

1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov
2. Listed in CISA KEV notes (cisa.gov) cisa.gov
3. Listed in CISA KEV notes (cisa.gov) cisa.gov
4. Listed in CISA KEV notes (cisa.gov) cisa.gov

Other references from the CVE record and advisory

1. volexity.com volexity.com
2. hub.ivanti.com hub.ivanti.com

All exploited Ivanti vulnerabilities · Today’s Security Digest