CVE-2023-46263

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 81.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-19 · updated 2026-06-17
Weakness: CWE-434

Description

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker to achieve a remote code execution.

Affected products

Ivanti Avalanche: before 6.4.2 — fixed in 6.4.2

How to fix

Upgrade to a fixed version: Ivanti Avalanche 6.4.2. Check the vendor advisory for mitigations.

References

https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt
https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt

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