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Tool Directory

CVE-2023-27470

HighPublished

BASupSrvcUpdater.exe in N-able Take Control Agent through 7.0.41.1141 before 7.0.43 has a TOCTOU Race Condition via a pseudo-symlink at...

Published: Sep 11, 2023
Updated: Sep 26, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

7.0/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.5%

Low · next 30 days

Percentile: 43.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

BASupSrvcUpdater.exe in N-able Take Control Agent through 7.0.41.1141 before 7.0.43 has a TOCTOU Race Condition via a pseudo-symlink at %PROGRAMDATA%\GetSupportService_N-Central\PushUpdates, leading to arbitrary file deletion.

Sources

CVE-2023-27470_ExerciseResearch
Windows privilege escalation lab that recreates CVE-2023-27470's arbitrary file deletion bug, with vulnerable executable, source, solution, and a mitigated build demonstrating Microsoft's mitigation.

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