Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-6958

CVE-2026-6958HIGH

Invicti Security Corp. Acunetix — Acunetix 25.11.251107123 Local Privilege Escalation via wvsc.exe

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   H   H   H    8.5   .0018    6.4     —

AFFECTED
  Product   Versions           Fixed
  Acunetix  25.11.251107123 –  —

TIMELINE
  Apr 24  Reserved by VulnCheck
  Sep 4   Published (CNA: VulnCheck)
  Sep 10  EXPLOIT PUBLISHED — CVE-2026-6958 (Invicti Security Corp. Acunetix). Public exploit reference added.
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-6958 (Invicti Security Corp. Acunetix). Public exploit reference added.

CWE-427 · CNA: VulnCheck · CVSS v4.0 · 5 references · NVD status: Deferred

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
April 24, 2026	Reserved	Reserved by VulnCheck
September 4, 2026	Published	Published (CNA: VulnCheck)
September 10, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-6958 (Invicti Security Corp. Acunetix). Public exploit reference added.
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-6958 (Invicti Security Corp. Acunetix). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Invicti Security Corp.	Acunetix	—	25.11.251107123	—

Weaknesses

CWE-427

References (5)

http://seclists.org/fulldisclosure/2026/Sep/0
https://olografix.org/acme/_poc/CVE-2026-6958.pdf [technical-description, exploit]
https://seclists.org/fulldisclosure/2026/Sep/0 [technical-description, exploit]
https://www.acunetix.com/ [product]
https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe [third-party-advisory]

Authoritative record: CVE-2026-6958 at cve.org

Vendors: invicti security

Weaknesses: CWE-427

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-6958 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.