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CVE-2023-54331

Outline 1.6.0 - Unquoted Service Path

HIGH
7.8
CVSS Score
Published: January 13, 2026 at 10:52 PM UTC
Updated: June 17, 2026 at 06:47 AM UTC
1 product affected across 1 vendorOutline

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Outline 1.6.0 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path in the OutlineService executable to inject malicious code that will be executed with LocalSystem permissions.

Affected

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

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 (3)

ExploitThird Party Advisory
Source: cverecord
https://www.exploit-db.com/exploits/51128
Product
Source: cverecord
https://getoutline.org/
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/outline-unquoted-service-path

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGHVulnCheck
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-428

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