CVE-2026-64675

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Source
https://cve.org/CVERecord?id=CVE-2026-64675
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64675.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-64675
Aliases
  • GHSA-mmg6-p4pr-cj6h
Published
2026-11-13T18:51:06Z
Modified
2026-11-15T02:46:52Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
BACnet Stack: Pre-auth OOB read in xy_color_decode (BACnetXYColor) via WriteGroup/WriteProperty
Details

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.5 and 1.5.1, a single unauthenticated BACnet/IP UDP datagram (port 47808) triggers an out-of-bounds read in xy_color_decode() (src/bacnet/lighting.c), reachable pre-authentication through two default-registered service handlers: the UnconfirmedRequest WriteGroup service (0x0A) and Confirmed WriteProperty on a BACnetXYColor-typed property. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64675.json"
}
References

Affected packages

Git / github.com/bacnet-stack/bacnet-stack

Affected ranges

Type
GIT
Repo
https://github.com/bacnet-stack/bacnet-stack
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
289b90d8d109b00594667a82007255bb71b36a6b
Fixed
3a74c74a8139526e34da32c6cc41ed7c71aaded5
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.4.5"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.5.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        }
    ]
}

Affected versions

bacnet-stack-1.*
bacnet-stack-1.0.0
bacnet-stack-1.1.1
bacnet-stack-1.2.0
bacnet-stack-1.3.0
bacnet-stack-1.3.1
bacnet-stack-1.3.2
bacnet-stack-1.3.3
bacnet-stack-1.3.4
bacnet-stack-1.3.5
bacnet-stack-1.3.6
bacnet-stack-1.3.7
bacnet-stack-1.3.8
bacnet-stack-1.4.0
bacnet-stack-1.4.1
bacnet-stack-1.4.2
bacnet-stack-1.4.3
bacnet-stack-1.4.4
bacnet-stack-1.5.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64675.json"