CVE Tools
Sign in

CVE-2021-38421

Fuji Electric Tellus Lite V-Simulator out of bounds read

Published: Dec 20, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-125
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.8%
Top 49.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Fuji Electric V-Server Lite and Tellus Lite V-Simulator prior to v4.0.12.0 is vulnerable to an out-of-bounds read, which may allow an attacker to read sensitive information from other memory locations or cause a crash.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

V-Server LiteFuji Electric
Embedded
ICS / OT / IoT / plc-scada-hmi
Tellus Lite V-SimulatorFuji Electric
Embedded
ICS / OT / IoT / plc-scada-hmi
v-serverfujielectricICS / OT / IoT
v-simulatorfujielectricICS / OT / IoT
fuji electriccommercialJPICS / OT / IoTaka v-sft, tellus lite v-simulator, monitouch v-sft
fujielectriccommercialJPICS / OT / IoT

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-299-01
cisa.gov
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-299-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-21-299-01
cisa.gov
and 12 more references View all →

Timeline

Published
Dec 20, 2021
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-38421 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows