CVE-2023-51773 - Vulnerability Details - OpenCVE

Description

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c.

Published: 2023-12-25

Score: 9.1 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:bacnetstack:bacnet_stack:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00372.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md
https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2
https://github.com/bacnet-stack/bacnet-stack/pull/546
https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8
https://sourceforge.net/p/bacnet/bugs/85/

History

Fri, 23 May 2025 16:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Bacnetstack Bacnetstack bacnet Stack
CPEs		cpe:2.3:a:bacnetstack:bacnet_stack::::::::
Vendors & Products		Bacnetstack Bacnetstack bacnet Stack

Subscriptions

Bacnetstack Bacnet Stack

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-12-25T00:00:00.000Z

Updated: 2024-08-02T22:48:11.271Z

Reserved: 2023-12-25T00:00:00.000Z

Link: CVE-2023-51773

Vulnrichment

Updated: 2024-08-02T22:48:11.271Z

NVD

Status : Analyzed

Published: 2024-02-29T01:42:05.557

Modified: 2025-05-23T15:39:17.030

Link: CVE-2023-51773

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-126

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-51773", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-02T22:48:11.271Z", "dateReserved": "2023-12-25T00:00:00.000Z", "datePublished": "2023-12-25T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-12-25T20:35:12.087Z"}, "descriptions": [{"lang": "en", "value": "BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://sourceforge.net/p/bacnet/bugs/85/"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-126", "lang": "en", "description": "CWE-126 Buffer Over-read"}]}], "affected": [{"vendor": "bacnet_protocol_stack_project", "product": "bacnet_protocol_stack", "cpes": ["cpe:2.3:a:bacnet_protocol_stack_project:bacnet_protocol_stack:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "0", "status": "affected", "lessThan": "1.3.2", "versionType": "custom"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2024-07-26T19:17:47.911804Z", "id": "CVE-2023-51773", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-26T19:33:35.662Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T22:48:11.271Z"}, "title": "CVE Program Container", "references": [{"url": "https://sourceforge.net/p/bacnet/bugs/85/", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://sourceforge.net/p/bacnet/bugs/85/", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md", "tags": ["x_transferred"]}, {"url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T22:48:11.271Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-51773", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-07-26T19:17:47.911804Z"}}}], "affected": [{"cpes": ["cpe:2.3:a:bacnet_protocol_stack_project:bacnet_protocol_stack:*:*:*:*:*:*:*:*"], "vendor": "bacnet_protocol_stack_project", "product": "bacnet_protocol_stack", "versions": [{"status": "affected", "version": "0", "lessThan": "1.3.2", "versionType": "custom"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-126", "description": "CWE-126 Buffer Over-read"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-26T19:18:20.392Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://sourceforge.net/p/bacnet/bugs/85/"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md"}, {"url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2"}], "descriptions": [{"lang": "en", "value": "BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-12-25T20:35:12.087907"}}}, "cveMetadata": {"cveId": "CVE-2023-51773", "state": "PUBLISHED", "dateUpdated": "2024-08-02T22:48:11.271Z", "dateReserved": "2023-12-25T00:00:00", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2023-12-25T00:00:00", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bacnetstack:bacnet_stack:*:*:*:*:*:*:*:*", "matchCriteriaId": "4D6408AF-EAB6-4695-B992-6409C3FCE97D", "versionEndExcluding": "1.3.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c."}, {"lang": "es", "value": "BACnet Stack anterior a 1.3.2 tiene una funci\u00f3n de decodificaci\u00f3n sobrelectura del b\u00fafer APDU en bacapp_decode_application_data en bacapp.c."}], "id": "CVE-2023-51773", "lastModified": "2025-05-23T15:39:17.030", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-02-29T01:42:05.557", "references": [{"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/546"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8"}, {"source": "cve@mitre.org", "tags": ["Permissions Required"], "url": "https://sourceforge.net/p/bacnet/bugs/85/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/546"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "https://sourceforge.net/p/bacnet/bugs/85/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-126"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}