CVE-2022-2561

Code execution via untrusted XML deserialization

Published Mar 29, 2023 · Updated Feb 18, 2025

Deserialization of untrusted data in OPC Labs QuickOPC 2022.1 allows remote attackers to execute code through a malicious XML file. Connectivity Explorer loads saved Live Points from XML without adequately validating serialized objects before deserializing them. The target must open the attacker-supplied file, and code runs with the privileges of the Connectivity Explorer process.

CVSS severity7.8
High
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in OPC Labs QuickOPC 2022.1 allows remote attackers to execute code through a malicious XML file. Connectivity Explorer loads saved Live Points from XML without adequately validating serialized objects before deserializing them. The target must open the attacker-supplied file, and code runs with the privileges of the Connectivity Explorer process.

The record

CVE
CVE-2022-2561
Published
Mar 29, 2023
Updated
Feb 18, 2025
Vendor
OPC Labs
Product
QuickOPC
Classifications
CWE-502, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=2022.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OPC Labs · QuickOPCversion=2022.1

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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