How severe is CVE-2026-27869?

CVE-2026-27869 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2026-27869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-27869?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-27869 have an EU (EUVD) identifier?

Yes. CVE-2026-27869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37578.

When was CVE-2026-27869 published?

CVE-2026-27869 was published on 2026-06-17 and last updated on 2026-07-01.

CVE-2026-27869

CVE-2026-27869 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37578
Weakness: CWE-770
Published: 2026-06-17
Last modified: 2026-07-01

Description

An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration action is required) who has the vulnerable software could, with a Slow Loris attack, cause Denial of Service (DoS) on the web interface of the device. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.

Frequently asked questions

What is CVE-2026-27869?: An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration action is required) who has the vulnerable software could, with a Slow Loris attack, cause Denial of Service (DoS) on the web interface of the device. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.
How severe is CVE-2026-27869?: CVE-2026-27869 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2026-27869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-27869?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27869 have an EU (EUVD) identifier?: Yes. CVE-2026-27869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37578.
When was CVE-2026-27869 published?: CVE-2026-27869 was published on 2026-06-17 and last updated on 2026-07-01.

References

EU advisories (EUVD)

https://www.hackrtu.com/blog/CNA-HRTU-0002/

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