THREAT OPS › Threat News › [CISA KEV] CVE-2021-23758 — Ajax.NET Professional Ajax.NET Professional: Ajax.NET Professional Deserialization of Untrusted Data Vulnerability
[CISA KEV] CVE-2021-23758 — Ajax.NET Professional Ajax.NET Professional: Ajax.NET Professional Deserialization of Untrusted Data Vulnerability
CVE: CVE-2021-23758 Vendor: Ajax.NET Professional Product: Ajax.NET Professional Vulnerability: Ajax.NET Professional Deserialization of Untrusted Data Vulnerability Date Added: 2026-08-26 Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics
MITRE ATT&CK techniques
- Cloud ServicesT1021.007
Indicators of compromise
- b0e63be5f0bb20dfce507cb8a1a9568f6e73de57sha1
- CVE-2021-23758cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2021-23758