by Kastro
Paper/Archive/CVE-2021-23758

CVE-2021-23758

Ajax.NET Professional Ajax.NET Professional — Deserialization of Untrusted Data

KEV · due 9 SepEPSS 83%public exploitSSVC actCVSS 9.8
critical.is priorityof 100
99
CVSS 9.8 (NVD)9.8 / 10 × 3029.4In CISA KEV+3030.0EPSS percentile 99.7.997 × 2019.9Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
AjaxPro.2< unspecifiedunspecifiedCNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
snyk (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: no · Technical impact: total

References

refsnyk.io/vuln/SNYK-DOTNET-AJAXPRO2-1925971refgithub.com/michaelschwarz/Ajax.NET-Professional/commit/b0e63be5f0bb20dfce507cb8a1a9568f6e73de57refpacketstormsecurity.com/files/175677/AjaxPro-Deserialization-Remote-Code-Execution.htmlwriteupblog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operationsrefcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-23758kevcisa.gov/known-exploited-vulnerabilities-catalog