ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-10659

The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input.

Published Sep 30, 2025 · catalog updated Sep 30, 2025 · MegaSys Telenium Online Web Application:

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-10659. EPSS is 1.21%. Act only if a listed version of MegaSys Telenium Online Web Application: is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.21%
Remediation
Vendor / distro source
Affected products
vendor MegaSys Telenium Online Web Application: 0 ≤8.4.21

The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because the input is not correctly validated or sanitized, an unauthenticated attacker can inject arbitrary operating system commands through a crafted HTTP request, leading to remote code execution on the server in the context of the web application service account.

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 MegaSys Telenium Online Web Application: 0 ≤8.4.210 ≤8.4.21

How to fix CVE-2025-10659

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-2025-10659. EPSS is 1.21%. Act only if a listed version of MegaSys Telenium Online Web Application: is installed.

Which versions are affected?

Compare what you have installed with MegaSys Telenium Online Web Application: 0 ≤8.4.21 0 ≤8.4.21. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.21%. 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.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 30, 2025 · EUVD

    Detected

    The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because the input is not correctly validated or sanitized, an unauthenticated attacker can inject arbitrary operating system comma

  2. Sep 30, 2025 · EUVD

    Updated

    The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because the input is not correctly validated or sanitized, an unauthenticated attacker can inject arbitrary operating system comma

Sources

  • CVE.orgVulnerability recordCVE-2025-10659

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-10659

    30-day exploitation probability 1.21%

    first.org
  • EUVDVulnerability recordEUVD-2025-31772

    The Telenium Online Web Application is vulnerable due to a PHP endpoint accessible to unauthenticated network users that improperly handles user-supplied input. This vulnerability occurs due to the insecure termination of a regular expression check within the endpoint. Because th

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026