CVE-2026-6958 Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe
Local attackers can escalate privileges to SYSTEM by placing malicious files in a missing directory loaded by the Acunetix scanning engine.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6958?
CVE-2026-6958 is a high-severity vulnerability in Invicti Security Corp. Acunetix, published on 4 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-427
Which versions are affected by CVE-2026-6958?
How do I fix CVE-2026-6958?
No fix has been published for CVE-2026-6958 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6958 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6958 exists.
Sources
Also known as GHSA-gfg7-69hm-p6fm.