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CVE-2021-38415

25
FAUCET Score

CVE-2021-38415 describes a heap-based buffer overflow vulnerability in Fuji Electric V-Server Lite and Tellus Lite V-Simulator versions prior to 4.0.12.0. This flaw, triggered by parsing a specially crafted project file, carries a high CVSS score of 7.8, indicating a high potential for an attacker to execute arbitrary code with user interaction. While no public exploits or active exploitation have been observed, and community discussion is minimal, the vulnerability's impact on confidentiality, integrity, and availability is significant if exploited.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.12.0CPE matchmatch criteria
cpe:2.3:a:fujielectric:v-server:*:*:*:*:lite:*:*:*
< 4.0.12.0CPE 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
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 55th 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

cisa.gov / uscert/ics/advisories/icsa-21-299-01
PatchThird Party AdvisoryUS Government Resource