How severe is CVE-2021-38415?

CVE-2021-38415 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-38415 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38415?

CVE-2021-38415 primarily affects Fujielectric V-server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-38415?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-38415 published?

CVE-2021-38415 was published on 2021-12-20 and last updated on 2026-06-17.

CVE-2021-38415

CVE-2021-38415 is a high-severity vulnerability in Fujielectric V-server with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-122
Affected product: Fujielectric V-server
Published: 2021-12-20
Last modified: 2026-06-17

Description

Fuji Electric V-Server Lite and Tellus Lite V-Simulator prior to v4.0.12.0 is vulnerable a heap-based buffer overflow when parsing a specially crafted project file, which may allow an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2021-38415?: Fuji Electric V-Server Lite and Tellus Lite V-Simulator prior to v4.0.12.0 is vulnerable a heap-based buffer overflow when parsing a specially crafted project file, which may allow an attacker to execute arbitrary code.
How severe is CVE-2021-38415?: CVE-2021-38415 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-38415 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38415?: CVE-2021-38415 primarily affects Fujielectric V-server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-38415?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-38415 published?: CVE-2021-38415 was published on 2021-12-20 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-299-01

Affected products (2)

cpe:2.3:a:fujielectric:v-server:*:*:*:*:lite:*:*:*
cpe:2.3:a:fujielectric:v-simulator:*:*:*:*:lite:*:*:*

More vulnerabilities in Fujielectric V-server

CVE-2019-18240 — Critical (CVSS 9.8): In Fuji Electric V-Server 4.0.6 and prior, several heap-based buffer overflows have been identified, which may allow an…
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