Vulnerability in Invicti Security Corp. Acunetix
CVE-2026-6958
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Invicti Security Corp. Acunetix — versions 25.11.251107123
Weakness classification (CWE)
References
- olografix.org/acme/_poc/CVE-2026-6958.pdf (technical-description, exploit)
- seclists.org/fulldisclosure/2026/Sep/0 (technical-description, exploit)
- www.acunetix.com/ (product)
- www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe (third-party-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-6958?
- CVE-2026-6958 is a high-severity vulnerability in Invicti Security Corp. Acunetix, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2026-09-04.
- How severe is CVE-2026-6958?
- High severity. CVSS v3 base score is 7.8 out of 10.