CVE-2026-67271

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-18. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in the SMB/CIFS. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service and Remote execution. This is a Critical vulnerability as a remote user could send a specially crafted SMB packet and cause a crash, that is persistent in case automatic restarts are enabled. Additionally, a more sophisticated attacker could use the same vulnerability for Remote Code execution.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

DSA-2026-330 Dell PowerStore T Security Update for Multiple Vulnerabilities | Dell US

https://www.dell.com/support/kbdoc/en-us/000497829/dsa-2026-330-dell-powerstore-t-security-update-for-multiple-vulnerabilities

Vendor Advisories for CVE-2026-67271(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 28× 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. 2026-08-21 06:50 UTCGHSA enrichment
  2. 2026-08-21 02:36 UTCEG score recompute
  3. 2026-08-21 02:36 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:23 UTCGHSA enrichment
  6. 2026-08-20 18:10 UTCGHSA enrichment
  7. 2026-08-20 13:57 UTCGHSA enrichment
  8. 2026-08-20 11:08 UTCGHSA enrichment
  9. 2026-08-20 06:55 UTCGHSA enrichment
  10. 2026-08-20 02:41 UTCGHSA enrichment
  11. 2026-08-19 22:28 UTCGHSA enrichment
  12. 2026-08-19 18:15 UTCEG score recompute
  13. 2026-08-19 18:15 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 12:49 UTCGHSA enrichment
  16. 2026-08-19 08:34 UTCGHSA enrichment
  17. 2026-08-19 04:20 UTCEG score recompute
  18. 2026-08-19 04:19 UTCGHSA enrichment
  19. 2026-08-19 04:11 UTCEG score recompute
  20. 2026-08-19 04:11 UTCGHSA enrichment
  21. 2026-08-19 00:37 UTCGHSA enrichment
  22. 2026-08-18 20:23 UTCEG score recompute
  23. 2026-08-18 20:23 UTCGHSA enrichment
  24. 2026-08-18 19:19 UTCEG score recompute
  25. 2026-08-18 19:19 UTCGHSA enrichment
Show 3 more
  1. 2026-08-18 17:21 UTCEG score recompute
  2. 2026-08-18 16:50 UTCEG score recompute
  3. 2026-08-18 16:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67271?
CVE-2026-67271 is a critical vulnerability published on August 18, 2026. Dell PowerStore SDNAS, contains an Out-of-bounds Write vulnerability in the SMB/CIFS. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service and Remote execution. This is a Critical vulnerability as a remote user could send a…
When was CVE-2026-67271 disclosed?
CVE-2026-67271 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67271 actively exploited?
CVE-2026-67271 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 61.6% of all scored CVEs.
What is the CVSS score of CVE-2026-67271?
CVE-2026-67271 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-67271?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67271, 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-2026-67271

Explore →

Is Your Infrastructure Affected by CVE-2026-67271?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs