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CVE-2021-22655

23
FAUCET Score

CVE-2021-22655 is a high-severity vulnerability affecting Fujielectric Tellus Lite V-Simulator and V-Server Lite versions prior to 4.0.10.0. It involves multiple out-of-bounds read issues when processing specially crafted project files, which could lead to arbitrary code execution. With a CVSS score of 7.8, this vulnerability requires user interaction (UI:R) and local access (AV:L), but has low attack complexity (AC:L) and no required privileges (PR:N), posing a significant risk of complete compromise (C:H, I:H, A:H). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.10.0CPE matchmatch criteria
cpe:2.3:a:fujielectric:v-server:*:*:*:*:lite:*:*:*
< 4.0.10.0CPE matchmatch criteria
cpe:2.3:a:fujielectric:v-simulator:*:*:*:*:lite:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 62nd percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

us-cert.cisa.gov / ics/advisories/icsa-21-026-01
Third Party AdvisoryUS Government Resource