CVE-2023-51773 json
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 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-56461
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c.
Patch / fix
- bacnet_protocol_stack_project bacnet_protocol_stack 1.3.2
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Affected products
- bacnet_protocol_stack_project bacnet_protocol_stack
Classification
- Weakness
-
- CWE-126 Buffer Over-read
References
-
github.com
/bacnet-stack/bacnet-stack/pull/546
patch
-
github.com
/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8
patch
-
github.com
/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2
patch
-
sourceforge.net
/p/bacnet/bugs/85/
permissions-required
-
github.com
/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md
release-notes
Sources
- CVE List CVE-2023-51773
- NVD CVE-2023-51773
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