CVE-2026-6958

Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe

Acunetix 25.11.251107123 for Windows contains a local privilege escalation vulnerability in the Web Vulnerability Scanning Engine (wvsc.exe) that allows low-privileged local attackers to execute arbitrary code as SYSTEM by exploiting a missing hardcoded directory path for OpenSSL-related files. Attackers can create the missing directory, place a malicious file at the expected path, and cause the SYSTEM-level wvsc.exe process to load and execute it, resulting in full privilege escalation.

Affected

Invicti Security Corp. · Acunetix

CVSS v4.0 VULNCHECK

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 VULNCHECK

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

EPSS

0.18% chance of exploitation in the next 30 days, 7th percentile

Published

2026-09-04

Updated

2026-10-01

Proof-of-concept exploits (2)

• https://seclists.org/fulldisclosure/2026/Sep/0
• https://olografix.org/acme/_poc/CVE-2026-6958.pdf

References

• CVE Record
• NVD entry