CVE-2026-27867
CROSS-SITE SCRIPTING (XSS) VIA THE CMDCOOKIE PARAMETER REGESTA SMART HD-PLC OF TELDAT
Teldat Regesta Smart HD-PLC - TLDPH16D2Industrial & IoT
CVSS
4.8MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action is required) who has the vulnerable firmware version could inject a specific payload via the parameter "cmdcookie" withing the /upgrade/index.html resulting in to a Cross-Site Scripting (XSS). This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.06.00.02
Text from CVE List
Affected versions 2
- Regesta Smart HD-PLC - TLDPH16D2affected: 11.02.06.00.02CVE List
- Regesta Smart HD-PLC - TLDPH16D2unaffected: 11.02.06.00.03CVE List
References 5
- hackrtu.com/blog/CNA-HRTU-0004/Fixvia CVE List
- hackrtu.com/blog/CNA-CVE-2026-27867/Fixvia CVE List
- support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-USFixvia CVE List
- teldat.com/es/Referencevia CVE List
- support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdfReferencevia CVE List