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Duplicate Advisory: Remote Code Execution in AjaxNetProfessional

Critical severity GitHub Reviewed Published Dec 16, 2021 to the GitHub Advisory Database • Updated Feb 3, 2026
Withdrawn This advisory was withdrawn on Feb 3, 2026

Package

nuget AjaxNetProfessional (NuGet)

Affected versions

<= 21.11.29

Patched versions

21.11.29.1

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-6r7c-6w96-8pvw. This link is maintained to preserve external references.

Original Description

All versions of package ajaxpro.2 are vulnerable to Deserialization of Untrusted Data due to the possibility of deserialization of arbitrary .NET classes, which can be abused to gain remote code execution.

References

Published by the National Vulnerability Database Dec 3, 2021
Reviewed Dec 6, 2021
Published to the GitHub Advisory Database Dec 16, 2021
Withdrawn Feb 3, 2026
Last updated Feb 3, 2026

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

Weaknesses

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-74r6-grj9-8rq6

Source code

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