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CVE-2026-86358

HIGH
8.8
CVSS Score
Published: September 16, 2026 at 04:23 PM UTC
Updated: September 21, 2026 at 06:05 PM UTC
1 product affected across 1 vendorUpdate Package Framework

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Update Package Framework· Dell
95%
v < 26.07.03v < 26.07.03 or later
Affected range stops below 26.07.03, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.07.03 or later, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121

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