Vulnerability details
CVE-2026-6958
Invicti Security Acunetix
Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe
CVSS 4.0
8.5High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.5High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Invicti Security Corp. | Acunetix | 25.11.251107123 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://seclists.org/fulldisclosure/2026/Sep/0 technical-descriptionexploit
- https://olografix.org/acme/_poc/CVE-2026-6958.pdf technical-descriptionexploit
- https://www.acunetix.com/ product
- https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe third-party-advisory
- http://seclists.org/fulldisclosure/2026/Sep/0
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Details
- Published
- 2026-09-04
- Last updated
- 2026-10-01
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-427Uncontrolled Search Path Element