CVE-2026-6958CWE-427

CVE-2026-6958

High · published September 4, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
3.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.5 · 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
EPSS
0.00141 · 3.8th percentile
Weakness
CWE-427 · Uncontrolled Search Path Element
Published
2026-09-04T19:17Z
References (5)
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 04 SEP 15:06Z
    Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe
    cvelistv5