What’s Vulnerable › Vulnerabilities

CVE-2026-6958: Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-24
• Weakness: CWE-427

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.

Affected products

• Invicti Security Corp. Acunetix: 25.11.251107123

References

• https://olografix.org/acme/_poc/CVE-2026-6958.pdf
• https://seclists.org/fulldisclosure/2026/Sep/0
• https://www.acunetix.com/
• https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe
• http://seclists.org/fulldisclosure/2026/Sep/0

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