CVE-2026-3869CWE-303

CVE-2026-3869

published September 11, 2026

CVSS
9.2
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.

The record
Technical detail
CVSS
9.2 · NONE
CVSS v4.0
9.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-303 · Incorrect Implementation of Authentication Algorithm
Published
2026-09-11T20:17Z
References (1)
https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-04.pdf · [email protected]
EPSS history
Timeline
  • 13 SEP 03:22Z
    EPSS moved — → 1%
    epss
  • 11 SEP 15:13Z
    CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the…
    cvelistv5