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Vulnerabilities

Vulnerability · CVE-2025-8259

A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0.

Published Jul 28, 2025 · catalog updated Apr 15, 2026 · Vaelsys VaelsysV4

Check if you run it

No confirmed exploitation is on record for CVE-2025-8259. EPSS is 3.18%. Act only if a listed version of Vaelsys VaelsysV4 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.18%
Remediation
Advisory link
Affected products
vendor Vaelsys VaelsysV4 5.1

A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /grid/vgrid_server.php of the component Web interface. Such manipulation of the argument xajaxargs leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. Upgrading to version 5.1.1 and 5.4.1 can resolve this issue. It is suggested to upgrade the affected component.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Vaelsys VaelsysV4 5.15.1

How to fix CVE-2025-8259

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-8259. EPSS is 3.18%. Act only if a listed version of Vaelsys VaelsysV4 is installed.

Which versions are affected?

Compare what you have installed with Vaelsys VaelsysV4 5.1 5.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 3.18%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 28, 2025 · EUVD

    Detected

    A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /grid/vgrid_server.php of the component Web interface. Such manipulation of the argument xajaxargs leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. Upgrading to version 5.1.1 and 5.4.

  2. Apr 15, 2026 · EUVD

    Updated

    A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /grid/vgrid_server.php of the component Web interface. Such manipulation of the argument xajaxargs leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used. Upgrading to version 5.1.1 and 5.4.

Sources

  • CVE.orgVulnerability recordCVE-2025-8259

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-22854

    A vulnerability was identified in Vaelsys VaelsysV4 up to 5.1.0/5.4.0. Affected by this issue is the function execute_DataObjectProc of the file /grid/vgrid_server.php of the component Web interface. Such manipulation of the argument xajaxargs leads to os command injection. The a

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Apr 15, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.