---
title: "CVE-2023-28126: Authentication Bypass by Primary Weakness | CubePath"
description: "An authentication bypass vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to gain access by exploiting the SetUser…"
language: en
source: https://cubepath.com/security/cve/CVE-2023-28126
---

# CVE-2023-28126: Authentication Bypass by Primary Weakness | CubePath

## Description

An authentication bypass vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to gain access by exploiting the SetUser method or can exploit the Race Condition in the authentication message.

Official description from the CVE record, published by hackerone. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-28126)

## Key data

### CVSS 3.1 Medium 5.9

Score published by CISA-ADP in the CVE record.

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

| Metric                 | Value     | What it means                                                                             |
| ---------------------- | --------- | ----------------------------------------------------------------------------------------- |
| Attack vector          | Network   | The vulnerable component can be reached over a network, possibly from the Internet.       |
| Attack complexity      | High      | The attack depends on conditions outside the attacker's control, so it takes preparation. |
| Privileges required    | None      | No account or privileges are needed.                                                      |
| User interaction       | None      | No action from any user is needed.                                                        |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                         |
| Confidentiality impact | High      | Serious or total effect on the secrecy of data.                                           |
| Integrity impact       | None      | No effect on the trustworthiness of data.                                                 |
| Availability impact    | None      | No effect on availability.                                                                |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.66659 (66.7% probability)

Percentile

99.3%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Jan 29, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

no

Technical impact

partial

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-305](https://cwe.mitre.org/data/definitions/305.html) Authentication Bypass by Primary Weakness
- [CWE-362](https://cwe.mitre.org/data/definitions/362.html) Concurrent Execution using Shared Resource with Improper Synchronization

## Affected products

Products listed in the CVE record, as the CNA published them.

- Avalanche

  - affected: Avalanche versions 6.3.x and below

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [forums.ivanti.com/s/article/ZDI-CAN-17750-Ivanti-Avalanche-…](https://forums.ivanti.com/s/article/ZDI-CAN-17750-Ivanti-Avalanche-EnterpriseServer-GetSettings-Exposed-Dangerous-Method-Authentication-Bypass-Vulnerability?language=en%5FUS)

## Timeline

1. ID reserved Mar 10, 2023
2. Record published May 9, 2023
3. Record last updated Jan 29, 2025

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:57 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)