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Vulnerability record · CVE-2023-53954 · published 19 December 2025

CVE-2023-53954: Unquoted search path vulnerability

ActFax 10.10 contains an unquoted service path vulnerability that allows local attackers to potentially escalate privileges by exploiting the ActiveFaxServiceNT service configuration. Attackers with write permissions to Program Files directories can inject a malicious ActSrvNT.exe executable to gain elevated system access when the service restarts.

8.5 CVSS 4.0 High EPSS 0.14% · top 97.3% CWE-428 · Unquoted search path Deferred
8.5CVSS 4.0 base score
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

ActFax 10.10 contains an unquoted service path vulnerability that allows local attackers to potentially escalate privileges by exploiting the ActiveFaxServiceNT service configuration. Attackers with write permissions to Program Files directories can inject a malicious ActSrvNT.exe executable to gain elevated system access when the service restarts.

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:

References

LinkTags
https://www.actfax.com
https://www.exploit-db.com/exploits/51332
https://www.vulncheck.com/advisories/actfax-unquoted-path-services-privilege-escalation-vulnerability

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Source: NIST National Vulnerability Database (record CVE-2023-53954), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.