Critical severity9.8NVD Advisory· Published Jan 12, 2018· Updated Jun 17, 2026
CVE-2017-16743
CVE-2017-16743
Description
An Improper Authorization issue was discovered in PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, and 48xxx Series products running firmware Version 1.0 to 1.32. A remote unauthenticated attacker may be able to craft special HTTP requests allowing an attacker to bypass web-service authentication allowing the attacker to obtain administrative privileges on the device.
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Affected products
1- Range: 1.0 to 1.32
Patches
Vulnerability mechanics
References
2- ics-cert.us-cert.gov/advisories/ICSA-18-011-03nvdPatchThird Party AdvisoryUS Government Resource
- cert.vde.com/en-us/advisories/vde-2017-006nvd
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