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HIGH

CVE-2026-84851

CVSS v3

7.5

HIGH

EPSS Score

0.6 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.

Technical details

Published
2026-09-03
Last Modified
2026-09-03

Frequently asked questions

What is CVE-2026-84851?

An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.

Is CVE-2026-84851 actively exploited?

Active exploitation of CVE-2026-84851 has not been confirmed. Its EPSS score was 0.6% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-84851?

CVE-2026-84851 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-84851 affecting your environment?

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