CVE-2020-36987

Program Access Controller 1.2.0.0 contains an unquoted service path vulnerability in PACService.exe that allows local attackers to execute code with elevated privileges. Attackers can exploit the unquoted path during system startup or reboot to inject and run malicious executables 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

EPSS

0.16% chance of exploitation in the next 30 days, 6th percentile

Published

2026-01-28

Updated

2026-07-28

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48966

References

• CVE Record
• NVD entry

Related

• CVE-2020-36986
• CVE-2020-36988
• CVE-2020-36985
• CVE-2020-36989
• CVE-2020-36984
• CVE-2020-36990