CVE-2025-11573

HIGHNVD 7.57.5—

7.5

An infinite loop issue in Amazon.IonDotnet library versions

To mitigate this issue, users should upgrade to version v1.3.2. As of August 20, 2025, this library has been deprecated and will not receive further updates.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 30.4%
KEV: Not listed

Published

October 9, 2025

Last Modified

April 15, 2026

References (3)

ff89ba41-3aa1-4d27-914a-91399e9639e5https://aws.amazon.com/security/security-bulletins/AWS-2025-022/
ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/amazon-ion/ion-dotnet/releases/tag/v1.3.2
ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/amazon-ion/ion-dotnet/security/advisories/GHSA-q5r6-9qwq-g2wj

Vendor Advisories for CVE-2025-11573(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

AWS-2025-022
AWS Security Bulletins
CVE-2025-11573 - Denial of Service issue in Amazon.IonDotnet

Frequently asked(5)

What is CVE-2025-11573?

CVE-2025-11573 is a high vulnerability published on October 9, 2025. An infinite loop issue in Amazon.IonDotnet library versions <v1.3.2 may allow a threat actor to cause a denial of service through a specially crafted text input. To mitigate this issue, users should upgrade to version v1.3.2. As of August 20, 2025, this library has been deprecated and will not…

When was CVE-2025-11573 disclosed?

CVE-2025-11573 was first published in the National Vulnerability Database on October 9, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-11573 actively exploited?

CVE-2025-11573 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-11573?

CVE-2025-11573 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2025-11573?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-11573, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-11573

📅 Published

🔄 Last Modified

🔗 References (3)

📣 Vendor Advisories for CVE-2025-11573(1)

❓ Frequently asked(5)