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CVE-2022-1965

CODESYS runtime system prone to file deletion due to improper error handling

HIGH
8.1
CVSS Score
Published: June 24, 2022 at 07:46 AM UTC
Updated: June 17, 2026 at 04:23 AM UTC
2 products affected across 1 vendorRuntime ToolkitPLCWinNT

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Severity
HIGH8.1
Exploit prediction
EPSS 1%

Description

Multiple products of CODESYS implement a improper error handling. A low privilege remote attacker may craft a request, which is not properly processed by the error handling. In consequence, the file referenced by the request could be deleted. User interaction is not required.

Affected

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

PLCWinNT· Codesys
95%
2.0 ≤ v < 2.4.7.57V2 ≤ v < V2.4.7.572
Affected range stops below 2.4.7.57, so it looks safe — our inference, not a vendor statement
Affected range stops below V2.4.7.57, so it looks safe — our inference, not a vendor statement
Runtime Toolkit· Codesys
95%
2.0 ≤ v < 2.4.7.57V2 ≤ v < V2.4.7.572
Affected range stops below 2.4.7.57, so it looks safe — our inference, not a vendor statement
Affected range stops below V2.4.7.57, 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 (1)

x_refsource_CONFIRMMitigationVendor Advisory
Source: [email protected]
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17139&token=ec67d15a433b61c77154166c20c78036540cacb0&download=

CVSS

8.1HIGHCERTVDE
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-755

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