CVE-2022-1118
Published: 17 May 2022
Summary
CVE-2022-1118 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Rockwellautomation Connected Component Workbench. Its CVSS base score is 8.6 (High).
Operationally, ranked in the top 4.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Connected Components Workbench versions 13.00.00 and earlier, ISaGRAF Workbench versions 6.0 through 6.6.9, and Safety Instrumented System Workstation versions 1.2 and earlier for Trusted Controllers contain a deserialization flaw tracked as CWE-502. The products do not restrict the classes of objects that can be deserialized from untrusted input, allowing a crafted serialized payload to execute arbitrary code when processed.
An attacker can supply a malicious file that a local user must open inside one of the affected workbenches. Successful exploitation yields code execution with the privileges of the user who opens the file; the attack therefore requires user interaction and runs in a local context, producing a CVSS 8.6 rating.
CISA advisory ICSA-22-095-01 describes the affected Rockwell Automation and related industrial-control products and directs users to vendor guidance for updated versions or configuration changes that prevent loading of arbitrary serialized objects.
The EPSS score for this CVE rose from a low baseline to a peak of 0.5148 on 2025-12-11 before receding to the current value of 0.2209, indicating that exploitation interest increased after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-24461
Vulnerability details
Connected Components Workbench (v13.00.00 and prior), ISaGRAF Workbench (v6.0 though v6.6.9), and Safety Instrumented System Workstation (v1.2 and prior (for Trusted Controllers)) do not limit the objects that can be deserialized. This allows attackers to craft a malicious serialized object…
more
that, if opened by a local user in Connected Components Workbench, may result in arbitrary code execution. This vulnerability requires user interaction to be successfully exploited
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.