TI-2021-18636 Aliases CVE-2021-42128 GHSA-mfmh-5798-r2wm

An exposed dangerous function vulnerability exists in Ivanti Avalanche before 6.3.3 using…

MEDIUM 50CWE-749Published 2021-12-07 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An exposed dangerous function vulnerability exists in Ivanti Avalanche before 6.3.3 using inforail Service allows Privilege Escalation via Enterprise Server Service.

Why it matters now

EPSS 0.04647 91st 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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Ivanti Avalanche	6.3.3	—	No fix listed	CNA

Ivanti Avalanche Vendor— Affected 6.3.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ivanti:avalanche::::::::	before 6.3.3	Vulnerable	Ivanti

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

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-42128
2026-10-03 Alias added: GHSA-mfmh-5798-r2wm

References

Advisory 1

https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3

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