CVE-2026-78339

HIGHNVD 7.17.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 7.1 under NVD CVSS v3. EPSS exploit probability: <0.1% (below the 1st percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 6.3 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-10-09) is not newer than that change (2026-10-13), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 5 sources updated this week
7.1EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 7.1Exploit: None knownExposed services: Not assessed

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

The CVE record's description, written by its CNA (Dell), states the affected versions: "Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Incorrect Permission Assignment for Critical Resource vulnerability." No release containing a fix is confirmed on record.

Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Incorrect Permission Assignment for Critical Resource vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure, Protection mechanism bypass, and Unauthorized access.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100

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 (value × EchelonGraph’s weight)
Severity71% × 45%
The EG Score, 7.1 of 10.
Exploitation<0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 9, 2026

Last Modified

October 13, 2026

Advisory Details (1)

Auto-updated Oct 9, 2026
No fix on record yet.
Web page

DSA-2026-385: Security Update for Dell Secure Connect Gateway Policy Manager Multiple Vulnerabilities | Dell Canada

https://www.dell.com/support/kbdoc/en-ca/000503592/dsa-2026-385-security-update-for-dell-secure-connect-gateway-policy-manager-multiple-vulnerabilities?msockid=3021cac2195069ed3194ddad186a68f9

Vendor Advisories for CVE-2026-78339(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 24× in last 7d / 24× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-13 16:48 UTCEG score recompute▲ 0.80
  2. 2026-10-13 16:47 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  3. 2026-10-13 16:44 UTCNVD updateCVSS v3 → 7.1 · severity → HIGH
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-10-12 15:36 UTCEG score recompute
  6. 2026-10-11 19:22 UTCEG score recompute
  7. 2026-10-11 16:38 UTCEG score recompute
  8. 2026-10-11 13:57 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  10. 2026-10-11 04:50 UTCEG score recompute
  11. 2026-10-11 04:50 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-10-10 04:20 UTCEG score recompute
  14. 2026-10-10 04:20 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  15. 2026-10-10 04:07 UTCEG score recompute
  16. 2026-10-10 04:07 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  17. 2026-10-09 16:55 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  18. 2026-10-09 16:34 UTCEG score recompute
  19. 2026-10-09 16:34 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  20. 2026-10-09 15:25 UTCEG score recompute
  21. 2026-10-09 15:24 UTCGHSA enrichmentGHSA-4pvw-c4q7-9cf5 · GitHub CVSS 6.3
  22. 2026-10-09 10:47 UTCEG score recompute
  23. 2026-10-09 09:49 UTCEG score recomputeFirst assessed: 6.3 MEDIUM
  24. 2026-10-09 09:48 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-78339?
CVE-2026-78339 is a high-severity vulnerability; its CVE record was published on October 9, 2026. Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Incorrect Permission Assignment for Critical Resource vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure, Protection…
When was CVE-2026-78339 made public?
CVE-2026-78339 was made public on August 31, 2026: that is the date its CVE record's CNA, Dell, gives for when the vulnerability was made public. The CVE record itself was published on October 9, 2026. EchelonGraph's copy of the record carries a last-modified date of October 13, 2026; the record at its source may have been updated since.
Is CVE-2026-78339 actively exploited?
CVE-2026-78339 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78339?
CVE-2026-78339 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-78339?
No fix for CVE-2026-78339 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's description, written by its CNA (Dell), states the affected versions: "Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Incorrect Permission Assignment for Critical Resource vulnerability." No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-78339 are linked in the Vendor Advisories panel on this page.

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