CVE-2025-11573
Bulletin ID: AWS-2025-022 Scope: Amazon Content Type: Important (requires attention) Publication Date: 2025/10/09 11:00 PM PDT Description: Amazon.IonDotnet is a library for the Dotnet language that is used to read and write Amazon Ion data. We identified CVE-2025-11573, which describes an infinite loop issue in Amazon.IonDotnet library versions <v1.3.2 that may allow a threat actor to cause a denial of service through a specially crafted text input. As of August 20, 2025, this library has been deprecated and will not receive further updates. Affected versions: <1.3.2
CSIRTS triage
- What
- An infinite loop issue may allow denial of service through crafted input.
- Who is affected
- Users of Amazon.IonDotnet library versions earlier than 1.3.2.
- Urgency
- Remediation is urgent due to the potential for denial of service.
- Action
- Upgrade to version 1.3.2 or later.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all EPSS-scored CVEs.
Advisory coverage (1)
- unknownCVE-2025-11573 - Denial of Service issue in Amazon.IonDotnetaws · 2026-06-05
External references
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