CVE-2023-43870

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

When installing the Net2 software a root certificate is installed into the trusted store. A potential hacker could access the installer batch file or reverse engineer the source code to gain access to the root certificate password. Using the root certificate and password they could then create their own certificates to emulate another site. Then by establishing a proxy service to emulate the site they could monitor traffic passed between the end user and the site allowing access to the data content.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
33.0%
KEV
Not listed

Published

December 19, 2023

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jul 4, 2026
No patch confirmed yet.
generic

Paxton Net2 System | Paxton Access Control

https://www.paxton-access.com/systems/net2/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 47× 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 109 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:26 UTCEG score recompute
  4. 2026-07-22 23:13 UTCEG score recompute▲ 1.70
  5. 2026-07-22 14:06 UTCEPSS rescore
  6. 2026-07-21 15:23 UTCEPSS rescore
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  24. 2026-07-11 08:26 UTCEPSS rescore
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  1. 2026-07-09 19:08 UTCEPSS rescore
  2. 2026-07-08 15:13 UTCEPSS rescore
  3. 2026-07-07 13:44 UTCEPSS rescore
  4. 2026-07-06 16:26 UTCEPSS rescore
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  6. 2026-07-06 02:22 UTCEPSS rescore
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  21. 2026-06-24 14:04 UTCEPSS rescore
  22. 2026-06-24 14:04 UTCEPSS rescore
  23. 2026-06-24 06:35 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  24. 2026-06-23 21:31 UTCEPSS rescore
  25. 2026-06-23 21:31 UTCEPSS rescore
  26. 2026-06-22 14:24 UTCEPSS rescore
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  30. 2026-06-21 01:58 UTCEPSS rescore
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  39. 2026-06-15 17:47 UTCEPSS rescore
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  41. 2026-06-14 23:16 UTCEPSS rescore
  42. 2026-06-13 22:59 UTCEPSS rescore
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  44. 2026-06-12 23:10 UTCEPSS rescore
  45. 2026-06-12 23:10 UTCEPSS rescore
  46. 2026-06-11 13:59 UTCEPSS rescore
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  48. 2026-06-10 22:17 UTCEPSS rescore
  49. 2026-06-10 13:21 UTCEPSS rescore
  50. 2026-06-10 13:21 UTCEPSS rescore
  51. 2026-06-08 14:16 UTCEPSS rescore
  52. 2026-06-08 14:16 UTCEPSS rescore
  53. 2026-06-07 15:23 UTCEPSS rescore
  54. 2026-06-07 15:23 UTCEPSS rescore
  55. 2026-06-06 13:46 UTCEPSS rescore
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  74. 2026-05-28 13:44 UTCEPSS rescore
  75. 2026-05-28 13:43 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-43870?
CVE-2023-43870 is a critical vulnerability published on December 19, 2023. When installing the Net2 software a root certificate is installed into the trusted store. A potential hacker could access the installer batch file or reverse engineer the source code to gain access to the root certificate password. Using the root certificate and password they could then create…
When was CVE-2023-43870 disclosed?
CVE-2023-43870 was first published in the National Vulnerability Database on December 19, 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-2023-43870 actively exploited?
CVE-2023-43870 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-43870?
CVE-2023-43870 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-43870?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43870, 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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