CVE-2021-47787

Name: CVE-2021-47787
Creator: NVD / NIST
Published: 2026-01-16T00:16:22.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2021-47787 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. TotalAV 5.15.69 contains an unquoted service path vulnerability in multiple system services running with LocalSystem privileges. Attackers can place malicious executables in specific unquoted path segments to potentially gain SYSTEM-level access by exploiting the service path configuration.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

TotalAV 5.15.69 contains an unquoted service path vulnerability in multiple system services running with LocalSystem privileges. Attackers can place malicious executables in specific unquoted path segments to potentially gain SYSTEM-level access by exploiting the service path configuration.

Metrics

CVSS 3.1

7.8/10

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

CVSS 4.0

8.5/10

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/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

EPSS Probability

0.23%

13.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-428

Affected Software

Vendor	Product	Versions
Totalav	Totalav	5.15.69

References

https://www.exploit-db.com/exploits/50314Exploit, Third Party Advisory, VDB Entry
https://www.totalav.comProduct
https://www.vulncheck.com/advisories/totalav-unquoted-service-pathThird Party Advisory
https://www.exploit-db.com/exploits/50314Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jan 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-47787?

How severe is CVE-2021-47787?

CVE-2021-47787 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2021-47787?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-47787?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST