Read the docs
TI-2020-07067 Aliases CVE-2020-8809GHSA-r58g-p5fc-5h6w

Gurux GXDLMS Director prior to 8.5.1905.1301 downloads updates to add-ins and OBIS code…

Priority LOW 38CWE-494Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-494.

Summary

Gurux GXDLMS Director prior to 8.5.1905.1301 downloads updates to add-ins and OBIS code over an unencrypted HTTP connection. A man-in-the-middle attacker can prompt the user to download updates by modifying the contents of gurux.fi/obis/files.xml and gurux.fi/updates/updates.xml. Then, the attacker can modify the contents of downloaded files. In the case of add-ins (if the user is using those), this will lead to code execution. In case of OBIS codes (which the user is always using as they are needed to communicate with the energy meters), this can lead to code execution when combined with CVE-2020-8810.

Why it matters now

EPSS 0.01202 68th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gurux:device_language_message_specification_director:*:*:*:*:*:*:*:*before 8.5.1905.1301VulnerableGurux
  • cpe:2.3:a:gurux:device_language_message_specification_director:*:*:*:*:*:*:*:* Versions before 8.5.1905.1301 Vulnerable ·Gurux

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-8809
  2. 2026-10-03 Alias added: GHSA-r58g-p5fc-5h6w

References

Exploit 2

  • TI-2020-07068 An issue was discovered in Gurux GXDLMS Director through 8.5.1905.1301. CVSS 3.1HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences