CVE & CISA-KEV Catalog

CVE-2021-36763

HIGH
7.5
CVSS v3
NVD

Description

In CODESYS V3 web server before 3.5.17.10, files or directories are accessible to External Parties.

CWE-552

How to fix

Remediation Available
controlNVD
Affected:< 4.2.0.0Fixed in:4.2.0.0CVE-2021-36763derived from NVD
control rteNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD
control runtime system toolkitNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD
control win slNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD
embedded target visu toolkitNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD
hmiNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD
remote target visu toolkitNVD
Affected:< 3.5.17.10Fixed in:3.5.17.10CVE-2021-36763derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

1.01%probability of exploitation in 30 days
59thpercentile

Moderate risk: more likely to be exploited than 59% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-552 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-17519High7.598%KEVFix
CVE-2025-11371High7.592%KEVFix
CVE-2023-50164Critical9.881%-Fix
CVE-2016-3715Medium5.575%KEVFix
CVE-2020-15175High7.471%-Fix
CVE-2021-39316High7.567%--
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.