CVE-2021-47780

8.5 highEPSS 0.2%

High (8.5) in macro-expert macro expert. EPSS 0.2% chance of exploitation in the next 30 days.

Macro Expert 4.7 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the improperly configured service path to inject malicious executables that will be run with LocalSystem permissions during service startup.

Severity

CVSS 4.0

8.5 high

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.8 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-31)
CWE: CWE-428
Published: 2026-01-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

macro-expert:macro_expert

References

http://www.macro-expert.com/
https://www.exploit-db.com/exploits/50431
https://www.vulncheck.com/advisories/macro-expert-unquoted-service-path

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