CVE-2026-45265
- Source
- https://cve.org/CVERecord?id=CVE-2026-45265
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45265.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45265
- Aliases
-
- GHSA-v3gx-mwrp-xvh5
- Published
- 2026-11-12T19:59:55Z
- Modified
- 2026-11-13T10:45:15Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
- Summary
- Atomic-Read-File RecordCount Stack-Based Out-of-Bounds Write in bacnet-stack
- Details
-
BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, there is a stack-based out-of-bounds write / stack-buffer-overflow in bacnet-stack when the server processes a malicious Atomic-Read-File request in record access mode. The bug is triggered on the real server side. A crafted request can set an excessively large RecordCount, which is later used as the loop bound for writing record data into a stack-allocated BACNET_ATOMIC_READ_FILE_DATA data structure. However, the stack object only has space for one fileData element. When the loop reaches i = 1, the code computes &data->fileData[1], which is already out of bounds, and the resulting invalid pointer is passed down to memmove(), causing a stack-buffer-overflow. This issue has been patched in versions 1.4.4 and 1.5.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-121" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45265.json" }- References
Affected packages
Git / github.com/bacnet-stack/bacnet-stack
Affected ranges
- Type
- GIT
- Repo
- https://github.com/bacnet-stack/bacnet-stack
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.4.4" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "0" }, { "fixed": "1.5.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" } ] }