CVE-2026-27870: Teldat Regesta Smart HD-PLC

CROSS-SITE SCRIPTING (XSS) VIA MALICIOUS FILE UPLOAD ON REGESTA SMART HD-PLC OF TELDAT

CVSS 4.8 MediumEPSS 0.0029 · 22nd percentile

Published by the CVE Program (CNA: HackRTU) at 17 Jun 2026, 08:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Teldat	Regesta Smart HD-PLC - TLDPH16D2	affected 11.02.05.10.02 unaffected 11.02.06.00.02 Other versions: unknown

Identifiers

CVE-2026-27870

CNA

HackRTU

Weakness (CWE)

CWE-79

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.8	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	CNA (HackRTU)

CISA KEV Not listed.
EPSS 0.0029, the 22nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

www.hackrtu.com/blog/CNA-HRTU-0003/ technical-descriptionpatch
www.hackrtu.com/blog/CNA-CVE-2026-27870/ technical-descriptionpatch
www.teldat.com/es/ product
support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdf product
support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US patch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.