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Vulnerabilities

Vulnerability · CVE-2026-2621

A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0.

Published Feb 17, 2026 · catalog updated Feb 23, 2026 · Sciyon Koyuan Thermoelectricity Heat Network Management System

Last checked Nov 13, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-2621. EPSS is 0.30%. Act only if a listed version of Sciyon Koyuan Thermoelectricity Heat Network Management System 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
0.30%
Remediation
Vendor / distro source
Affected products
vendor Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0

A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0. This affects an unknown part of the file /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx. The manipulation of the argument PGUID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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 Sciyon Koyuan Thermoelectricity Heat Network Management System 3.03.0

How to fix CVE-2026-2621

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-2026-2621. EPSS is 0.30%. Act only if a listed version of Sciyon Koyuan Thermoelectricity Heat Network Management System is installed.

Which versions are affected?

Compare what you have installed with Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0 3.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.30%. 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. Feb 17, 2026 · EUVD

    Detected

    A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0. This affects an unknown part of the file /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx. The manipulation of the argument PGUID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about

  2. Feb 23, 2026 · EUVD

    Updated

    A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0. This affects an unknown part of the file /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx. The manipulation of the argument PGUID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about

Sources

  • CVE.orgVulnerability recordCVE-2026-2621

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-2621

    30-day exploitation probability 0.30%

    first.org
  • EUVDVulnerability recordEUVD-2026-7657

    A security vulnerability has been detected in Sciyon Koyuan Thermoelectricity Heat Network Management System 3.0. This affects an unknown part of the file /SISReport/WebReport20/Proxy/AsyncTreeProxy.aspx. The manipulation of the argument PGUID leads to sql injection. The attack c

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 13, 2026
  • CVE.orgNov 9, 2026
  • EUVDNov 9, 2026