CVE-2026-81861

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

CWE-522: Insufficiently Protected Credentials vulnerability that could result in exposure of authentication information and unauthorized access to RTU functionality.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 11, 2026
No patch confirmed yet.
generic
https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-03.pdf

Vendor Advisories for CVE-2026-81861(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 19× in last 7d / 28× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-19 21:29 UTCEG score recompute
  3. 2026-09-19 21:29 UTCGHSA enrichment
  4. 2026-09-18 19:33 UTCEG score recompute
  5. 2026-09-18 19:33 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 08:39 UTCEG score recompute
  8. 2026-09-18 08:39 UTCGHSA enrichment
  9. 2026-09-17 06:43 UTCEG score recompute
  10. 2026-09-17 06:43 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 04:33 UTCEG score recompute
  14. 2026-09-16 04:33 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 02:36 UTCGHSA enrichment
  18. 2026-09-14 00:40 UTCEG score recompute
  19. 2026-09-14 00:40 UTCGHSA enrichment
  20. 2026-09-12 22:43 UTCEG score recompute
  21. 2026-09-12 22:43 UTCGHSA enrichment
  22. 2026-09-11 20:46 UTCEG score recompute
  23. 2026-09-11 20:46 UTCGHSA enrichment
  24. 2026-09-11 19:19 UTCEG score recompute
  25. 2026-09-11 19:19 UTCGHSA enrichment
Show 3 more
  1. 2026-09-11 16:30 UTCEG score recompute
  2. 2026-09-11 15:19 UTCEG score recompute
  3. 2026-09-11 15:18 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81861?
CVE-2026-81861 is a medium vulnerability published on September 11, 2026. CWE-522: Insufficiently Protected Credentials vulnerability that could result in exposure of authentication information and unauthorized access to RTU functionality.
When was CVE-2026-81861 disclosed?
CVE-2026-81861 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81861 actively exploited?
CVE-2026-81861 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 67.7% of all scored CVEs.
What is the CVSS score of CVE-2026-81861?
CVE-2026-81861 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-81861?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81861, 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

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