VDB-168832 · CVE-2021-22637 · icsa-21-026-01

Fuji Electric Tellus Lite V-Simulator/V-Server Lite prior 4.0.10.0 Project File stack-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.
6.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Fuji Electric Tellus Lite V-Simulator and V-Server Lite. It has been declared as critical. This issue affects some unknown processing of the component Project File Handler. Executing a manipulation can lead to stack-based overflow. This vulnerability is tracked as CVE-2021-22637. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Fuji Electric Tellus Lite V-Simulator and V-Server Lite. This vulnerability affects some unknown processing of the component Project File Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 01/28/2021 as icsa-21-026-01. The advisory is shared for download at us-cert.cisa.gov. This vulnerability was named CVE-2021-22637. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.0.10.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Fuji Electric

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tellus Lite V-Simulator/V-Server Lite 4.0.10.0

Timelineinfo

01/05/2021 🔍
01/28/2021 +23 days 🔍
01/28/2021 +0 days 🔍
02/21/2021 +23 days 🔍

Sourcesinfo

Advisory: icsa-21-026-01
Status: Confirmed

CVE: CVE-2021-22637 (🔍)
GCVE (CVE): GCVE-0-2021-22637
GCVE (VulDB): GCVE-100-168832

Entryinfo

Created: 01/28/2021 08:22
Updated: 02/21/2021 00:15
Changes: 01/28/2021 08:22 (38), 02/21/2021 00:10 (5), 02/21/2021 00:15 (18)
Complete: 🔍
Cache ID: 216::103