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Siemens SIMATIC S7-1500 CPU 1518 MFP Signal Handler Race Condition (CVE-2026-52910)

medium Tenable OT Security Plugin ID 505980

Version 1.2

Oct 5, 2026, 7:23 AM

  • CVSS metrics ("CVSSv2 score" set to 6.8)
  • CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C")
  • CVSS metrics ("CVSSv3 score" set to 6.4)
  • CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H")
  • CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C")
  • CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C")
  • CVSSv2 severity (based on CVE-2026-52910, severity decreased from "High" to "Medium")
  • CVSSv3 severity (based on None, severity decreased from "High" to "Medium")
  • Exploit attributes ("Exploit available" set to "True")
  • Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available")

Plugin Feed: 202610050723

Version 1.1

Oct 2, 2026, 6:07 PM

  • New

Plugin Feed: 202610021807

* Changelogs are generally available for changes made after Nov 1, 2022