VDB-151642 · CVE-2020-5544 · GCVE-0-2020-5544

Mitsubishi Electric MELQIC IU1 up to 1.0.7 TCP Crafted Packet null pointer dereference

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Mitsubishi Electric MELQIC IU1 up to 1.0.7. The impacted element is an unknown function of the component TCP Handler. Executing a manipulation as part of Crafted Packet can lead to null pointer dereference. This vulnerability is tracked as CVE-2020-5544. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in Mitsubishi Electric MELQIC IU1 up to 1.0.7. This vulnerability affects an unknown functionality of the component TCP Handler. The manipulation as part of a Crafted Packet leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

Null Pointer Dereference vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows remote attackers to stop the network functions or execute malware via a specially crafted packet.

The weakness was disclosed 03/16/2020. This vulnerability was named CVE-2020-5544 since 01/06/2020. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-151645, VDB-151644, VDB-151643 and VDB-151641 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Mitsubishi Electric

Name

MELQIC IU1

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2020 🔍
03/16/2020 +70 days 🔍
03/16/2020 +0 days 🔍
04/16/2024 +1492 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2020-5544 (🔍)
GCVE (CVE): GCVE-0-2020-5544
GCVE (VulDB): GCVE-100-151642
See also: 🔍

Entryinfo

Created: 03/16/2020 08:54
Updated: 04/16/2024 13:47
Changes: 03/16/2020 08:54 (37), 03/16/2020 08:59 (17), 04/16/2024 13:47 (17)
Complete: 🔍
Cache ID: 216::103

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