CVE-2023-29377

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory published 2026-09-14. a secondary CVSS source baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.6Exploit: None knownExposed: 0

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

An issue was discovered in Softing OPC UA C++ SDK through 6.20 and Softing Secure Integration Server through 1.22. By using FileType renames, it is possible to bypass limitations on assignment of a directory path to FileDirectory OPC UA objects and a file path to File OPC UA objects.

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 14, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

ZDI-23-1055 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-23-1055/

Vendor Advisories for CVE-2023-29377(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 18× 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. 2026-09-19 01:54 UTCEG score recompute
  2. 2026-09-19 01:54 UTCGHSA enrichment
  3. 2026-09-17 23:52 UTCEG score recompute
  4. 2026-09-17 23:52 UTCGHSA enrichment
  5. 2026-09-16 21:12 UTCEG score recompute
  6. 2026-09-16 21:12 UTCGHSA enrichment
  7. 2026-09-16 14:05 UTCEPSS rescore
  8. 2026-09-15 18:26 UTCEG score recompute
  9. 2026-09-15 18:26 UTCGHSA enrichment
  10. 2026-09-14 16:25 UTCEG score recompute
  11. 2026-09-14 16:25 UTCGHSA enrichment
  12. 2026-09-14 15:21 UTCEG score recompute
  13. 2026-09-14 15:20 UTCGHSA enrichment
  14. 2026-09-14 05:19 UTCEG score recompute
  15. 2026-09-14 04:55 UTCEG score recompute▲ 6.60
  16. 2026-09-14 04:54 UTCMITRE cvelistV5CVSS v3 → 6.6 · severity → MEDIUM
  17. 2026-09-14 04:45 UTCEG score recompute
  18. 2026-09-14 04:44 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2023-29377?
CVE-2023-29377 is a medium vulnerability published on September 14, 2026. An issue was discovered in Softing OPC UA C++ SDK through 6.20 and Softing Secure Integration Server through 1.22. By using FileType renames, it is possible to bypass limitations on assignment of a directory path to FileDirectory OPC UA objects and a file path to File OPC UA objects.
When was CVE-2023-29377 disclosed?
CVE-2023-29377 was first published in the National Vulnerability Database on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-29377 actively exploited?
CVE-2023-29377 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 59.2% of all scored CVEs.
What is the CVSS score of CVE-2023-29377?
CVE-2023-29377 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2023-29377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-29377, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-29377

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