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CVE-2021-40872

HIGH
7.5
CVSS Score
Published: November 10, 2021 at 10:46 PM UTC
Updated: June 17, 2026 at 04:07 AM UTC
2 products affected across 1 vendorUatoolkit EmbeddedSmartlink Hw Dp

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

An issue was discovered in Softing Industrial Automation uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) or login as an anonymous user (bypassing security checks) by sending crafted messages to a OPC/UA server. The server process may crash unexpectedly because of an invalid type cast, and must be restarted.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Smartlink Hw Dp· Softing
95%
v ≤ 1.10
Uatoolkit Embedded· Softing
95%
v < 1.40
Affected range stops below 1.40, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://industrial.softing.com/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40872.pdf

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-843

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