VDB-235590 · CVE-2023-3346 · icsa-23-208-03

Mitsubishi Electric M8V/M8/C80/IoT Unit Packet buffer 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.
9.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Mitsubishi Electric M8V, M8, C80 and IoT Unit. This vulnerability affects unknown code of the component Packet Handler. The manipulation results in buffer overflow. This vulnerability is known as CVE-2023-3346. It is possible to launch the attack remotely. No exploit is available. You are recommended to apply the suggested workaround.

Detailsinfo

A vulnerability was found in Mitsubishi Electric M8V, M8, C80 and IoT Unit (unknown version). It has been classified as very critical. Affected is an unknown code block of the component Packet Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 07/27/2023 as icsa-23-208-03. The advisory is available at cisa.gov. This vulnerability is traded as CVE-2023-3346. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/20/2023).

The best possible mitigation is suggested to be Workaround.

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Productinfo

Vendor

Mitsubishi Electric

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Mitsubishi Electric Corporation): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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: Workaround
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/21/2023 🔍
07/27/2023 +36 days 🔍
07/27/2023 +0 days 🔍
08/20/2023 +24 days 🔍

Sourcesinfo

Advisory: icsa-23-208-03
Status: Not defined

CVE: CVE-2023-3346 (🔍)
GCVE (CVE): GCVE-0-2023-3346
GCVE (VulDB): GCVE-100-235590

Entryinfo

Created: 07/27/2023 19:50
Updated: 08/20/2023 10:01
Changes: 07/27/2023 19:50 (37), 08/20/2023 09:58 (2), 08/20/2023 10:01 (11)
Complete: 🔍
Cache ID: 216::103