securitytabs

CVE-2026-72895

High8.4

A vulnerability has been identified in SIMATIC IPC BX-21A (All versions < V31.01.13), SIMATIC IPC RW-543A (All versions < V1.1.4), SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G (All versions < V28.01.15). A BIOS vendor test key is present in the UEFI Secure Boot key database. This could allow a local attacker with physical or administrative access to the device to boot an operating system or UEFI application signed with that test key, bypassing UEFI Secure Boot protections even when Secure Boot is enabled, potentially leading to a full loss of confidentiality, integrity, and availability of the device.

CVSS
8.4v4.0
EPSS (exploit probability)
0.1%3th pct
CISA KEV
Not listed

EPSS trendFIRST daily scores, last 90 days

FIRST EPSS held steady from 0.1% on 2026-10-14 to 0.1% on 2026-10-22, ranging 0.1%–0.1% across 9 daily scores.
2026-10-14 → 2026-10-22 · 9 days · 0.1%–0.1%
Daily values
FIRST EPSS daily scores for this CVE
Score dateEPSSPercentile
2026-10-220.1%3.2%
2026-10-210.1%3.2%
2026-10-200.1%3.2%
2026-10-190.1%3.1%
2026-10-180.1%3.1%
2026-10-170.1%3.1%
2026-10-160.1%3.1%
2026-10-150.1%3.1%
2026-10-140.1%3.1%

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Coverage1 article

References

Facts sourced from NVD, FIRST EPSS, and CISA KEV. Last synced 2026-10-22 20:34 UTC.

  • CVSS & description: NVD 2.0, fetched 2026-10-22 19:34 UTC
  • EPSS: FIRST EPSS, fetched 2026-10-22 20:34 UTC; score date 2026-10-22
  • KEV: CISA KEV, fetched 2026-10-22 20:34 UTC
CVE-2026-72895 | SecurityTabs