High severity7.5NVD Advisory· Published May 19, 2023· Updated Jun 17, 2026
CVE-2023-1618
CVE-2023-1618
Description
Active Debug Code vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 Serial number 2310 **** and prior allows a remote unauthenticated attacker to bypass authentication and illegally log into the affected module by connecting to it via telnet which is hidden function and is enabled by default when shipped from the factory. As a result, a remote attacker with unauthorized login can reset the module, and if certain conditions are met, he/she can disclose or tamper with the module's configuration or rewrite the firmware.
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Affected products
3- cpe:2.3:o:mitsubishielectric:melsec_ws0-geth00200_firmware:*:*:*:*:*:*:*:*
<= 2310+ 1 more
- (no CPE)range: <= 2310
- (no CPE)range: Serial number 2310 **** and prior
Patches
Vulnerability mechanics
References
3- jvn.jp/vu/JVNVU96063959nvdThird Party Advisory
- www.cisa.gov/news-events/ics-advisories/icsa-23-138-02nvdMitigationThird Party AdvisoryUS Government Resource
- www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-002_en.pdfnvdVendor Advisory
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