CVE-2025-12829 MEDIUM

CVE-2025-12829

Weakness CWE-125

Published November 7, 2025

Last update November 7, 2025

View on NVD All CVEs

CVSS base score

6.9/10

Attack vector Local

Attack complexity Low

Privileges required None

User interaction None

Confidentiality —

Integrity —

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 7, 2025 CVE published

November 7, 2025 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-12829 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/125.html

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04Related CVE

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