Severity:
High
Advisory ID:
PN1628
Published Date:
June 13, 2023
Last Updated:
September 09, 2025
Revision Number:
1.0
Known Exploited Vulnerability (KEV):
No
Corrected:
No
Workaround:
No
CVE IDs
CVE-2021-35940,
CVE-2017-12613
Summary
Apache Portable Runtime Vulnerability in FactoryTalk® Edge Gateway
Revision Number
1.1
Revision History
Version 1.0 - June 13, 2023
Version 1.1 - September 9, 2025 - Updated for readability
Affected Products
| Affected Product | First Known in Software Version | Corrected in Software Version |
| FactoryTalk® Edge Gateway | v1.03.00 | v1.04.00 |
Security Issue Details
Rockwell Automation uses the latest version of the CVSS scoring system to assess security issues. The security of our products is important to us as your industrial automation supplier. This irregularity was found internally during routine testing and is being reported based on our commitment to customer transparency and to improving production environments.
CVE-2021-35940 IMPACT
An out of bounds array read security issue was fixed in the apr_time_exp*() function in the Apache Portable Runtime v1.6.3 (CVE-2017-12613). The fix for this issue was not carried forward to the APR 1.7.x branch causing version 1.7.0 to regress compared to 1.6.3. Therefore it is vulnerable to the same issue. If exploited, a threat actor could potentially read confidential data or cause the software to become unavailable.
Known Exploited Vulnerability (KEV) database:
Customers can use Stakeholder-Specific Vulnerability Categorization to create more environment specific categories.
CVE-2021-35940 IMPACT
An out of bounds array read security issue was fixed in the apr_time_exp*() function in the Apache Portable Runtime v1.6.3 (CVE-2017-12613). The fix for this issue was not carried forward to the APR 1.7.x branch causing version 1.7.0 to regress compared to 1.6.3. Therefore it is vulnerable to the same issue. If exploited, a threat actor could potentially read confidential data or cause the software to become unavailable.
CVSS Base Score: 7.1
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE: CWE 125 Out-of-bounds ReadKnown Exploited Vulnerability (KEV) database:
NoCustomers can use Stakeholder-Specific Vulnerability Categorization to create more environment specific categories.
Risk Mitigation & User Action
Customers using the affected software should use the risk mitigation below and our security best practices to minimize the risks .
- Update to v1.04.00 which mitigates the issue.
- Security Best Practicies: QA43240 - Recommended Security Guidelines from Rockwell Automation
Additional Resources
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