CVE-2023-1618

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-05-19. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
63.1%
KEV
Not listed

Published

May 19, 2023

Last Modified

November 21, 2024

References (6)

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:06 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
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  10. 2026-07-16 17:01 UTCEPSS rescore
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  12. 2026-07-15 16:56 UTCEPSS rescore
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  1. 2026-07-06 02:21 UTCEPSS rescore
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  5. 2026-07-02 16:58 UTCEPSS rescore
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  7. 2026-06-30 23:21 UTCEPSS rescore
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  20. 2026-06-22 14:24 UTCEPSS rescore
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  24. 2026-06-21 01:58 UTCEPSS rescore
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  26. 2026-06-19 19:24 UTCEPSS rescore
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  39. 2026-06-11 13:59 UTCEPSS rescore
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  41. 2026-06-10 22:17 UTCEPSS rescore
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  44. 2026-06-08 14:15 UTCEPSS rescore
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  46. 2026-06-07 15:23 UTCEPSS rescore
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  48. 2026-06-06 13:46 UTCEPSS rescore
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  50. 2026-06-05 22:46 UTCEPSS rescore
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  52. 2026-06-05 06:09 UTCEPSS rescore
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  54. 2026-06-04 13:11 UTCEPSS rescore
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  63. 2026-05-29 13:43 UTCEPSS rescore
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  73. 2026-05-26 07:17 UTCEPSS rescore
  74. 2026-05-25 00:51 UTCEG score recompute
  75. 2026-05-25 00:51 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-1618?
CVE-2023-1618 is a high vulnerability published on May 19, 2023. 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…
When was CVE-2023-1618 disclosed?
CVE-2023-1618 was first published in the National Vulnerability Database on May 19, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-1618 actively exploited?
CVE-2023-1618 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-1618?
CVE-2023-1618 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2023-1618?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1618, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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