CVE-2026-6958: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-gfg7-69hm-p6fm
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CVSS 7.8
CWE-427
Published
Advisory Summary

CVE-2026-6958 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-427: Uncontrolled Search Path Element) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-6958 at a Glance

CVE Identifier CVE-2026-6958
GHSA Identifier GHSA-gfg7-69hm-p6fm
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-427: Uncontrolled Search Path Element
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-6958

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-6958, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-427: Uncontrolled Search Path Element, where the product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

References

NVD — CVE-2026-6958 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6958
olografix.org/acme/_poc/cve-2026-... WEB
https://olografix.org/acme/_poc/CVE-2026-6958.pdf
seclists.org/fulldisclosure/2026... WEB
https://seclists.org/fulldisclosure/2026/Sep/0
www.acunetix.com WEB
https://www.acunetix.com
www.vulncheck.com/advisories/acunetix... WEB
https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe
seclists.org/fulldisclosure/2026... WEB
http://seclists.org/fulldisclosure/2026/Sep/0

Frequently Asked Questions

What is CVE-2026-6958?
CVE-2026-6958 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-427: Uncontrolled Search Path Element.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-6958?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-6958?
CVE-2026-6958 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-6958?
CVE-2026-6958 is classified under CWE-427: Uncontrolled Search Path Element (The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.).
How can I check Maven dependencies for CVE-2026-6958?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gfg7-69hm-p6fm",
  "modified" : "2026-09-04T18:31:18Z",
  "published" : "2026-09-04T15:36:12Z",
  "aliases" : [ "CVE-2026-6958" ],
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-6958"
  }, {
    "type" : "WEB",
    "url" : "https://olografix.org/acme/_poc/CVE-2026-6958.pdf"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/fulldisclosure/2026/Sep/0"
  }, {
    "type" : "WEB",
    "url" : "https://www.acunetix.com"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/acunetix-local-privilege-escalation-via-wvsc-exe"
  }, {
    "type" : "WEB",
    "url" : "http://seclists.org/fulldisclosure/2026/Sep/0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-427" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T15:17:35Z"
  }
}