Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-86358

CVE-2026-86358HIGH

Dell Update Package Framework, versions prior to 26.07.03, contains a Stack-based Buffer Overflow vulnerability.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   A   L   N   N  U  H  H  H    8.8   .0041   32.6     —

AFFECTED
  Product                   Versions     Fixed
  Update Package Framework  unspecified  —

TIMELINE
  Sep 7   Reserved by dell
  Sep 16  Published (CNA: dell)
  Sep 21  RESCORED — CVE-2026-86358 (Dell Update Package Framework). CVSS 6.5 → 8.8 (NVD).

CWE-121 · CNA: dell · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Dell Update Package Framework, versions prior to 26.07.03, contains a Stack-based Buffer Overflow vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Remote execution.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 7, 2026	Reserved	Reserved by dell
September 16, 2026	Published	Published (CNA: dell)
September 21, 2026	RESCORED	RESCORED — CVE-2026-86358 (Dell Update Package Framework). CVSS 6.5 → 8.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Dell	Update Package Framework	—	—	—

Weaknesses

CWE-121

References (1)

https://www.dell.com/support/kbdoc/en-us/000509455/dsa-2026-417-security-update-for-dell-update-package-dup-framework-vulnerabilities [Vendor Advisory]

Authoritative record: CVE-2026-86358 at cve.org

Vendors: dell

Weaknesses: CWE-121

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-86358 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.