CVE-2026-63033

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Source
https://cve.org/CVERecord?id=CVE-2026-63033
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63033.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63033
Aliases
  • GHSA-7v97-jmwv-w5j7
Downstream
Published
2026-07-30T22:54:25.681Z
Modified
2026-08-02T03:31:53.447392710Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
MZ Automation lib60870 Out-of-bounds Read
Details

A crafted IEC 60870-5-104 I-frame with a declared object count exceeding what fits in the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap-allocated message buffer.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63033.json",
    "cna_assigner": "icscert",
    "cwe_ids": [
        "CWE-125"
    ]
}
References

Affected packages

Git / github.com/mz-automation/lib60870

Affected ranges

Type
GIT
Repo
https://github.com/mz-automation/lib60870
Events
Introduced
083dc8ecc222b0e07a04721075134ee7836ca6af
Last affected
083dc8ecc222b0e07a04721075134ee7836ca6af
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "2.4.0"
        },
        {
            "last_affected": "2.4.0"
        }
    ]
}

Affected versions

2.*
2.4.0
v2.*
v2.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63033.json"