Ajax.NET Professional
Summary iPlain-English security verdict for Ajax.NET Professional, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Ajax.NET Professional currently scores 20/100 — critical, with active exploitation. 1 of its known vulnerability is being actively exploited in the wild (CISA KEV), including CVE-2021-23758. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
Disclosure trend iNew CVEs published for Ajax.NET Professional each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2021-23758 HIGH exploited Insecure deserialization EPSS 89% → fixed in 21.10.30.1Get alerted about Ajax.NET Professional
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Frequently asked
Is Ajax.NET Professional safe and patched?
Ajax.NET Professional currently scores 20/100 — critical, with active exploitation. 1 of its known vulnerability is being actively exploited in the wild (CISA KEV), including CVE-2021-23758. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
What should I do about Ajax.NET Professional now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Ajax.NET Professional's official advisory. Some issues are under active exploitation, so treat this as urgent.
Why is Ajax.NET Professional listed on IsItPatched?
Ajax.NET Professional was added automatically because CISA's Known Exploited Vulnerabilities (KEV) catalog flagged it as actively exploited in the wild. IsItPatched tracks its known CVEs, severity (CVSS), exploitation probability (EPSS) and KEV status from public data; its version and lifecycle mapping is verified over time.
lifecycle unknown — needs latest supported version
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Ajax.NET Professional's official advisory before you patch or upgrade.