CVE-2023-3373

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory (severity: CRITICAL) published 2023-08-04. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.9Exploit: NoneExposed: 0

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

Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.

CVSS v3
5.9
EG Score
5.9(medium)
EPSS
50.7%
KEV
Not listed

Published

August 4, 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 9× in last 7d / 45× 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. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-11 08:26 UTCEPSS rescore
  3. 2026-07-09 19:08 UTCEPSS rescore
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  11. 2026-07-01 15:05 UTCEPSS rescore
  12. 2026-06-30 23:21 UTCEPSS rescore
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  14. 2026-06-28 14:06 UTCEPSS rescore
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  16. 2026-06-28 04:55 UTCEPSS rescore
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  18. 2026-06-27 03:07 UTCEPSS rescore
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  20. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-22 14:24 UTCEPSS rescore
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  3. 2026-06-21 14:55 UTCEPSS rescore
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  5. 2026-06-21 01:58 UTCEPSS rescore
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  7. 2026-06-19 19:24 UTCEPSS rescore
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  9. 2026-06-18 17:51 UTCEPSS rescore
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  11. 2026-06-17 17:51 UTCEPSS rescore
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  19. 2026-06-12 23:10 UTCEPSS rescore
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  21. 2026-06-11 13:59 UTCEPSS rescore
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  23. 2026-06-10 22:17 UTCEPSS rescore
  24. 2026-06-10 13:21 UTCEPSS rescore
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  26. 2026-06-08 14:16 UTCEPSS rescore
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  30. 2026-06-06 13:46 UTCEPSS rescore
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  37. 2026-06-04 13:11 UTCEPSS rescore
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  39. 2026-06-02 20:12 UTCEPSS rescore
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  41. 2026-06-01 13:51 UTCEPSS rescore
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  43. 2026-05-31 22:30 UTCEPSS rescore
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  45. 2026-05-31 00:15 UTCEPSS rescore
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  47. 2026-05-29 13:43 UTCEPSS rescore
  48. 2026-05-29 13:43 UTCEPSS rescore
  49. 2026-05-28 13:44 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 13:39 UTCEPSS rescore
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  53. 2026-05-26 13:43 UTCEPSS rescore
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  55. 2026-05-26 07:18 UTCEPSS rescore
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  57. 2026-05-26 07:18 UTCEPSS rescore
  58. 2026-05-24 20:08 UTCEG score recompute
  59. 2026-05-24 20:08 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-3373?
CVE-2023-3373 is a medium vulnerability published on August 4, 2023. Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking)…
When was CVE-2023-3373 disclosed?
CVE-2023-3373 was first published in the National Vulnerability Database on August 4, 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-2023-3373 actively exploited?
CVE-2023-3373 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-3373?
CVE-2023-3373 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2023-3373?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-3373, 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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