CVE-2025-12829
Medium · 6.2CVSS
6.2
EPSS
0.2%
Published
Nov 7, 2025
CISA due date
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The record
An uninitialized stack read issue exists in Amazon Ion-C versions <v1.1.4 that may allow a threat actor to craft data and serialize it to Ion text in such a way that sensitive data in memory could be exposed through UTF-8 escape sequences. To mitigate this issue, users should upgrade to version v1.1.4.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
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