CVE-2023-51773

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.05% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 62.0% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-12-25 00:00Z2 YR AGO

Last updated

2024-08-02 22:48Z2 YR AGO

Reserved

2023-12-25

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-126Buffer Over-readVariant

Data version

5.1

Document digest

58113a03715608c04a1d77365270683dd3297e8f6aa03c12d13ba01693e98d32

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