VDB-228087 · CVE-2023-0854 · EUVD-2023-12852

Canon mageCLASS MF743Cdw cmNetBiosParseName heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Canon mageCLASS MF743Cdw. This affects the function cmNetBiosParseName. Performing a manipulation results in heap-based overflow. This vulnerability is reported as CVE-2023-0854. The attacker must have access to the local network to execute the attack. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Canon mageCLASS MF743Cdw (version now known). This affects the function cmNetBiosParseName. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 05/05/2023. It is possible to read the advisory at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2023-0854 since 02/16/2023. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-12852). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Canon

Name

mageCLASS MF743Cdw

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (MITRE): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/16/2023 🔍
05/05/2023 +77 days 🔍
05/05/2023 +0 days 🔍
07/12/2025 +799 days 🔍

Sourcesinfo

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2023-0854 (🔍)
GCVE (CVE): GCVE-0-2023-0854
GCVE (VulDB): GCVE-100-228087
EUVD: 🔍

Entryinfo

Created: 05/05/2023 08:25
Updated: 07/12/2025 20:17
Changes: 05/05/2023 08:25 (37), 05/28/2023 09:57 (1), 05/28/2023 10:00 (12), 07/12/2025 20:17 (16)
Complete: 🔍
Cache ID: 216::103