Critical Alert 6 Active Exploits Detected Today

CVE-2021-23758 Ajax.NET Professional Deserialization of Untrusted Data Vulnerability →
CVE-2015-3246 Red Hat Libuser Race Condition Vulnerability →
CVE-2015-5287 Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability →
CVE-2022-0995 Linux Kernel Out-of-Bounds Write Vulnerability →
CVE-2026-8452 Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability →
CVE-2019-1068 Microsoft SQL Server Remote Code Execution Vulnerability →
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August 26, 2026

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CVE-2021-23758NVD

Vulnerability Summary

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.
Severity Level
HIGH(8.1)
Published Date
Dec 3, 2021
Last Modified
Aug 26, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
89.10%Probability
Root Weakness (CWE)
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh