CVE-2023-54331

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.

CVSS v4.0

8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.20% chance of exploitation in the next 30 days, 10th percentile

Published

2026-01-13

Updated

2026-03-05

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51128

References

• CVE Record
• NVD entry

Related

• CVE-2023-54330
• CVE-2023-54332
• CVE-2023-54329
• CVE-2023-54333
• CVE-2023-54328
• CVE-2023-54334