CVE-2023-41375

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2023-09-20. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Use after free vulnerability exists in Kostac PLC Programming Software Version 1.6.11.0. Arbitrary code may be executed by having a user open a specially crafted project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier because the issue exists in parsing of KPP project files. The vendor states that Kostac PLC Programming Software Version 1.6.10.0 or later implements the function which prevents a project file alteration. Therefore, to mitigate the impact of these vulnerabilities, a project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier needs to be saved again using Kostac PLC Programming Software Version 1.6.10.0 or later.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

September 20, 2023

Last Modified

June 17, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 43× 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 130 total refreshes for this CVE.

  1. 2026-08-09 13:44 UTCEPSS rescore
  2. 2026-08-09 13:44 UTCEPSS rescore
  3. 2026-08-07 16:25 UTCEPSS rescore
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  25. 2026-07-23 02:26 UTCEG score recompute
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  1. 2026-07-22 23:12 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
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  5. 2026-07-20 17:06 UTCEPSS rescore
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  21. 2026-07-11 08:26 UTCEPSS rescore
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  23. 2026-07-09 19:08 UTCEPSS rescore
  24. 2026-07-08 15:13 UTCEPSS rescore
  25. 2026-07-07 13:44 UTCEPSS rescore
  26. 2026-07-06 16:26 UTCEPSS rescore
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  41. 2026-06-25 13:48 UTCEPSS rescore
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  43. 2026-06-24 14:04 UTCEPSS rescore
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  45. 2026-06-23 21:31 UTCEPSS rescore
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  47. 2026-06-22 14:24 UTCEPSS rescore
  48. 2026-06-22 14:24 UTCEPSS rescore
  49. 2026-06-21 14:55 UTCEPSS rescore
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  51. 2026-06-21 01:58 UTCEPSS rescore
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  53. 2026-06-19 19:24 UTCEPSS rescore
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  55. 2026-06-18 17:51 UTCEPSS rescore
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  60. 2026-06-15 17:47 UTCEPSS rescore
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  67. 2026-06-11 13:59 UTCEPSS rescore
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  69. 2026-06-10 22:17 UTCEPSS rescore
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  72. 2026-06-08 14:16 UTCEPSS rescore
  73. 2026-06-08 14:16 UTCEPSS rescore
  74. 2026-06-07 15:23 UTCEPSS rescore
  75. 2026-06-07 15:23 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-41375?
CVE-2023-41375 is a high vulnerability published on September 20, 2023. Use after free vulnerability exists in Kostac PLC Programming Software Version 1.6.11.0. Arbitrary code may be executed by having a user open a specially crafted project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier because the issue exists in parsing of KPP…
When was CVE-2023-41375 disclosed?
CVE-2023-41375 was first published in the National Vulnerability Database on September 20, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-41375 actively exploited?
CVE-2023-41375 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 91.4% of all scored CVEs.
What is the CVSS score of CVE-2023-41375?
CVE-2023-41375 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-41375?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41375, 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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