Medium 4.8Published Jun 17, 2026

CVE-2026-27870CROSS-SITE SCRIPTING (XSS) VIA MALICIOUS FILE UPLOAD ON REGESTA SMART HD-PLC OF TELDAT

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

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It affects Teldat Regesta Smart HD-PLC - TLDPH16D2. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Teldat Regesta Smart HD-PLC - TLDPH16D2

Exploited in the last 30 days

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 software could, introduce arbitrary JavaScript by injecting a Cross-site Scripting (XSS) payload into the 'Hostname' field of the configuration file resulting in a XSS in the path /upgrade/query.php?cmd=p+3%3Bversion. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.

CVSS: 4.8 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: HackRTU
NVD analysis: Deferred
Record last updated: Jul 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Teldat Regesta Smart HD-PLC - TLDPH16D2 teldat:regesta_smart_hd_plc_tldph16d2 (from the name)	11.02.05.10.02; 11.02.06.00.02 not affected	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.