CVE-2026-85479CWE-306

CVE-2026-85479

Medium · published October 9, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
15.8
In the wild
Unconfirmed
What it is

The STTP-based data publisher on openPDC accepts network connections without authentication in its default configuration. An unauthenticated network attacker can connect to this interface and exchange data with it.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00252 · 15.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-09T18:17Z
References (2)
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-02.json · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-02 · [email protected]
EPSS history
Timeline
  • 11 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 09 OCT 13:52Z
    Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function
    cvelistv5
  • 09 OCT 13:52Z
    Grid Protection Alliance openPDC and openHistorian Missing Authentication for Critical Function
    cvelistv5