9.8

CVE-2022-36974: ivanti avalanche Deserialization of Untrusted Data

CVSS: 9.8v3.0CriticalModified
Published 29-03-2023Last modified 18-02-2025
Open JSON

Vulnerability summary

CVE-2022-36974 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in ivanti avalanche. EPSS estimates a 84.45% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (CVE.org)
EPSS score
84.45%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-03-2023
    PublishedVulnerability first disclosed.
  2. 18-02-2025
    Last modifiedVulnerability information updated.

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 Web File Server service. 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-15330.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

84.45%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

0.00 pp

From 84.45% on 20-09-2026

20-09-202620-10-2026
EPSS score
84.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ivanti1 product
  • avalanche6.3.2.3490 | ≥ 6.3.2.3490, < 6.3.4

1 vendor · 1 product

References

2 links