Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/AWS-2025-027/
- https://github.com/amazon-ion/ion-c/releases/tag/v1.1.4
- https://github.com/amazon-ion/ion-c/security/advisories/GHSA-7mgf-6x73-5h7r
FAQ
What is CVE-2025-12829?
CVE-2025-12829 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 ...
How severe is CVE-2025-12829?
CVE-2025-12829 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-12829?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.