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CVE-2023-51391

Micrium OS Network uC-HTTP server header parsing invalid pointer dereference vulnerability

HIGH
7.5
CVSS Score
Published: April 16, 2024 at 07:19 PM UTC
Updated: June 17, 2026 at 06:40 AM UTC
1 product affected across 1 vendorGecko Software Development Kit

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.

Affected

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

Gecko Software Development Kit· Silabs
60%
v < 4.4.2
Affected range stops below 4.4.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: [email protected]
https://community.silabs.com/068Vm000004688g
Source: [email protected]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1945

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHSilabs
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125CWE-476

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