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.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 10 Nov 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Amazon
Amazon ion
Vendors & Products Amazon
Amazon ion

Fri, 07 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 07 Nov 2025 18:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2025-11-07T18:13:55.938Z

Reserved: 2025-11-06T19:31:27.190Z

Link: CVE-2025-12829

cve-icon Vulnrichment

Updated: 2025-11-07T18:13:40.205Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-07T18:15:35.590

Modified: 2025-11-12T16:20:22.257

Link: CVE-2025-12829

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-11-10T09:33:40Z

Weaknesses