CVE-2026-52486

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory published 2026-09-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
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: Elevated riskExposed: 0

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

An issue in OpenDDS 3.33.x allows a local attacker to cause a denial of service via the verify function in the SIgnedDocument module

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
No patch confirmed yet. Sources: github.
generic

gist:31a58b0b613a5f4d82dd183b353bbdf2 · GitHub

https://gist.github.com/lkloliver/31a58b0b613a5f4d82dd183b353bbdf2
github

OpenDDS/dds/DCPS/security/SSL/SignedDocument.cpp at master · OpenDDS/OpenDDS · GitHub

https://github.com/OpenDDS/OpenDDS/tree/master/dds/DCPS/security/SSL/SignedDocument.cpp

Vendor Advisories for CVE-2026-52486(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 14× in last 7d / 30× 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 11:25 UTCEG score recompute
  2. 2026-09-19 11:25 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 12:15 UTCEG score recompute
  5. 2026-09-18 12:15 UTCGHSA enrichment
  6. 2026-09-17 13:05 UTCEG score recompute
  7. 2026-09-17 13:05 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 13:55 UTCEG score recompute
  10. 2026-09-16 13:55 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 14:38 UTCGHSA enrichment
  13. 2026-09-14 15:23 UTCGHSA enrichment
  14. 2026-09-13 16:13 UTCGHSA enrichment
  15. 2026-09-12 17:03 UTCGHSA enrichment
  16. 2026-09-11 17:53 UTCEG score recompute
  17. 2026-09-11 17:53 UTCGHSA enrichment
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-10 18:43 UTCEG score recompute
  20. 2026-09-10 18:43 UTCGHSA enrichment
  21. 2026-09-10 09:35 UTCEPSS rescore
  22. 2026-09-09 19:33 UTCEG score recompute
  23. 2026-09-09 19:33 UTCGHSA enrichment
  24. 2026-09-09 18:50 UTCEG score recompute▲ 6.60
  25. 2026-09-09 18:50 UTCGHSA enrichment
Show 5 more
  1. 2026-09-09 18:49 UTCMITRE cvelistV5CVSS v3 → 6.6 · severity → MEDIUM
  2. 2026-09-09 16:09 UTCGHSA enrichment
  3. 2026-09-08 20:31 UTCNVD update
  4. 2026-09-08 20:15 UTCEG score recompute
  5. 2026-09-08 20:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-52486?
CVE-2026-52486 is a medium vulnerability published on September 8, 2026. An issue in OpenDDS 3.33.x allows a local attacker to cause a denial of service via the verify function in the SIgnedDocument module
When was CVE-2026-52486 disclosed?
CVE-2026-52486 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52486 actively exploited?
CVE-2026-52486 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 99.9% of all scored CVEs.
What is the CVSS score of CVE-2026-52486?
CVE-2026-52486 has a CVSS v3.1 base score of 6.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-52486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52486, 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-2026-52486

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