CVE-2022-39959Public exploit

SYSTEM code execution via unquoted service path

Published Oct 7, 2022 · Updated Aug 3, 2024

Privilege escalation in Panini Everest Engine 2.0.4 allows local users to execute arbitrary code as SYSTEM through an unquoted service path. The SYSTEM service starts %PROGRAMDATA%\Panini\Everest Engine\EverestEngine.exe without quoting the path, so Windows selects a planted %PROGRAMDATA%\Panini\Everest.exe first. A low-privileged local account must be able to create that file and wait for a service restart, after which the planted code runs with SYSTEM privileges.

CVSS severity7.8
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Privilege escalation in Panini Everest Engine 2.0.4 allows local users to execute arbitrary code as SYSTEM through an unquoted service path. The SYSTEM service starts %PROGRAMDATA%\Panini\Everest Engine\EverestEngine.exe without quoting the path, so Windows selects a planted %PROGRAMDATA%\Panini\Everest.exe first. A low-privileged local account must be able to create that file and wait for a service restart, after which the planted code runs with SYSTEM privileges.

The record

CVE
CVE-2022-39959
Published
Oct 7, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-428, T1574.009
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-428Unquoted Search Path or Element
T1574.009Hijack Execution Flow: Path Interception by Unquoted Path

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo