CVE-2025-12829
low-risk
Published 2025-11-07
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.
Do I need to act?
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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.2/10
Medium
LOCAL
/ LOW complexity
25
/ 100
low-risk
Severity
20/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal