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Vulnerability record · CVE-2022-36971 · published 29 March 2023

CVE-2022-36971: Ivanti avalanche deserialization of untrusted data vulnerability

Ivanti · Avalanche

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the JwtTokenUtility class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15301.

8.8 CVSS 3.1 High EPSS 15% · top 3.4% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the JwtTokenUtility class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15301.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-22-776/ Third Party AdvisoryVDB Entry
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-22-776/ Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-36971), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.