CVE-2025-12829

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Source

https://cve.org/CVERecord?id=CVE-2025-12829

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12829.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-12829

Aliases

GHSA-7mgf-6x73-5h7r

Published

2025-11-07T18:04:15.700Z

Modified

2026-07-15T01:49:19.363927034Z

Severity

6.9 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

[none]

Details

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.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "fixed": "UTF-8"
                }
            ]
        }
    ],
    "cna_assigner": "AMZN",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12829.json",
    "cwe_ids": [
        "CWE-125"
    ]
}

References

Affected packages

Git / github.com/amazon-ion/ion-c

Affected ranges

Type

GIT

Repo

https://github.com/amazon-ion/ion-c

Events

Introduced

Fixed

49c53b55e1245a8aa161054dda41829fd687766a

Database specific

{
    "source": "REFERENCES"
}

Affected versions

v1.*

v1.0.0

v1.0.1

v1.0.2

v1.0.3

v1.0.5

v1.0.6

v1.1.0

v1.1.2

v1.1.3

v1.4.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12829.json"