CVE-2026-14480
9.9 · CRITICALOverview
CVE-2026-14480 is a critical-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
OpenPLC Runtime v3 contains an authenticated arbitrary file write
vulnerability in the legacy web UI program‑upload workflow. The
application stores an attacker‑supplied filename (prog_file) directly
into the Programs.File database field and later uses this value as the
destination path for an uploaded file without validating or restricting
the path. Because Python os.path.join() honors attacker‑controlled
absolute paths, an authenticated user can write arbitrary files anywhere
writable by the OpenPLC webserver process. In the default build
pipeline, all C++ source files within the OpenPLC runtime core directory
are automatically compiled into the executable runtime binary. By
writing a malicious .cpp file into this directory, an authenticated
attacker can escalate the arbitrary file write into arbitrary native
code execution when the operator triggers a normal program compilation
and runtime start.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Frequently Asked Questions
What is CVE-2026-14480?
CVE-2026-14480 is a critical-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).
How severe is CVE-2026-14480?
This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-14480?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-14480?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-14480 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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