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TI-2021-18632 Aliases CVE-2021-42124GHSA-jcr9-6f4v-3f68

Improper access control in Ivanti Avalanche

Priority MEDIUM 43CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

An improper access control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform a session takeover.

Why it matters now

EPSS 0.02689 85th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Ivanti Avalanche6.3.3—No fix listedCNA
  • Ivanti Avalanche Vendor— Affected 6.3.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ivanti:avalanche:*:*:*:*:*:*:*:*before 6.3.3VulnerableIvanti
  • cpe:2.3:a:ivanti:avalanche:*:*:*:*:*:*:*:* Versions before 6.3.3 Vulnerable ·Ivanti

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42124
  2. 2026-10-03 Alias added: GHSA-jcr9-6f4v-3f68

References

Advisory 1

  • TI-2022-17179 Deserialization of untrusted data in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
  • TI-2023-15842 Improper input validation in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
  • TI-2023-24891 Unrestricted file upload in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
  • TI-2023-15845 An unauthenticated attacker could achieve the code execution through a RemoteControl server. CVSS 3.1CRITICAL 9.8
  • TI-2022-17186 Path traversal in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
  • TI-2023-24890 Unrestricted file upload in Ivanti Avalanche CVSS 3.1CRITICAL 9.8
See all 116 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences