CVE-2023-22855

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-02-15. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 15%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

Kardex Mlog MCC 5.7.12+0-a203c2a213-master allows remote code execution. It spawns a web interface listening on port 8088. A user-controllable path is handed to a path-concatenation method (Path.Combine from .NET) without proper sanitisation. This yields the possibility of including local files, as well as remote files on SMB shares. If one provides a file with the extension .t4, it is rendered with the .NET templating engine mono/t4, which can execute code.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
15%
EPSS %ILE
96%
KEV
Not listed

Published

February 15, 2023

Last Modified

March 19, 2025

Advisory Details (5)

Auto-updated Sep 3, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Kardex Mlog MCC 5.7.12 - RCE (Remote Code Execution) - Windows remote Exploit

https://www.exploit-db.com/exploits/51239
generic🟡 PoC Available

CVE-2023-22855/advisory/advisory.md at main · patrickhener/CVE-2023-22855 · GitHub

https://github.com/patrickhener/CVE-2023-22855/blob/main/advisory/advisory.md
generic🟡 PoC Available

Full Disclosure: Remote Code Execution in Kardex MLOG

http://seclists.org/fulldisclosure/2023/Feb/10
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/171689/Kardex-Mlog-MCC-5.7.12-Remote-Code-Execution.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/171046/Kardex-Mlog-MCC-5.7.12-0-a203c2a213-master-File-Inclusion-Remote-Code-Execution.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 27× 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.

Showing the most recent 100 of 142 total refreshes for this CVE.

  1. 2026-09-08 21:57 UTCEPSS rescore
  2. 2026-09-07 15:59 UTCEPSS rescore
  3. 2026-09-06 13:45 UTCEPSS rescore
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  1. 2026-08-13 21:58 UTCEPSS rescore
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  9. 2026-08-03 10:34 UTCEPSS rescore
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  22. 2026-07-23 14:16 UTCEPSS rescore
  23. 2026-07-23 14:16 UTCEPSS rescore
  24. 2026-07-23 02:19 UTCEG score recompute
  25. 2026-07-22 23:06 UTCEG score recompute
  26. 2026-07-22 14:06 UTCEPSS rescore
  27. 2026-07-21 15:23 UTCEPSS rescore
  28. 2026-07-20 17:05 UTCEPSS rescore
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  37. 2026-07-15 16:56 UTCEPSS rescore
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  40. 2026-07-13 22:28 UTCEPSS rescore
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  42. 2026-07-12 05:45 UTCEPSS rescore
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  44. 2026-07-11 08:25 UTCEPSS rescore
  45. 2026-07-11 08:25 UTCEPSS rescore
  46. 2026-07-09 19:08 UTCEPSS rescore
  47. 2026-07-08 15:13 UTCEPSS rescore
  48. 2026-07-07 13:44 UTCEPSS rescore
  49. 2026-07-06 02:21 UTCEPSS rescore
  50. 2026-07-05 02:28 UTCEPSS rescore
  51. 2026-07-04 06:29 UTCEPSS rescore
  52. 2026-07-04 06:29 UTCEPSS rescore
  53. 2026-07-02 16:58 UTCEPSS rescore
  54. 2026-07-01 15:04 UTCEPSS rescore
  55. 2026-06-30 23:21 UTCEPSS rescore
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  59. 2026-06-28 04:54 UTCEPSS rescore
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  61. 2026-06-27 03:07 UTCEPSS rescore
  62. 2026-06-25 13:48 UTCEPSS rescore
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  64. 2026-06-24 14:03 UTCEPSS rescore
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  66. 2026-06-23 21:31 UTCEPSS rescore
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  68. 2026-06-21 14:55 UTCEPSS rescore
  69. 2026-06-21 14:55 UTCEPSS rescore
  70. 2026-06-21 01:58 UTCEPSS rescore
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  72. 2026-06-19 19:24 UTCEPSS rescore
  73. 2026-06-19 19:24 UTCEPSS rescore
  74. 2026-06-18 17:51 UTCEPSS rescore
  75. 2026-06-18 17:51 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51239
    First seen Apr 5, 2023

    Kardex Mlog MCC 5.7.12 - RCE (Remote Code Execution)

    Open source ↗

Frequently asked(5)

What is CVE-2023-22855?
CVE-2023-22855 is a critical vulnerability published on February 15, 2023. Kardex Mlog MCC 5.7.12+0-a203c2a213-master allows remote code execution. It spawns a web interface listening on port 8088. A user-controllable path is handed to a path-concatenation method (Path.Combine from .NET) without proper sanitisation. This yields the possibility of including local files, as…
When was CVE-2023-22855 disclosed?
CVE-2023-22855 was first published in the National Vulnerability Database on February 15, 2023, with the most recent update on March 19, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-22855 actively exploited?
CVE-2023-22855 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15% probability of exploitation in the next 30 days, which ranks it in the top 3.5% of all scored CVEs.
What is the CVSS score of CVE-2023-22855?
CVE-2023-22855 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-22855?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-22855, 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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