CVE-2023-51773: BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacapp_decode_application_data in bacapp.c

Critical severity · published Feb 29, 2024

CVE-2023-51773

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

9.1

CVSS

1.1%

EPSS

On KEV

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.1% · higher than 64% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Bacnet Stack · Bacnetstack

before 1.3.2 · source: NVD

Affected product

Bacnet Stack

Bacnetstack

All Bacnet Stack CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-51773

CVE.org

https://www.cve.org/CVERecord?id=CVE-2023-51773

Release Notes

https://github.com/bacnet-stack/bacnet-stack/blob/master/CHANGELOG.md

Patch

https://github.com/bacnet-stack/bacnet-stack/compare/bacnet-stack-1.3.1...bacnet-stack-1.3.2

Patch

https://github.com/bacnet-stack/bacnet-stack/pull/546

Patch

https://github.com/bacnet-stack/bacnet-stack/pull/546/commits/c465412a076ca6c9ddf649612f2b4e1874d8dcb8

Permissions Required

https://sourceforge.net/p/bacnet/bugs/85/