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Fencer Vulns
critical 9.1

CVE-2024-35783 json

A vulnerability has been identified in SIMATIC BATCH V9.1 (All versions), SIMATIC Information Server 2020 (All versions < V2020 SP2 Update…

published 2024-09-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-35556

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

A vulnerability has been identified in SIMATIC BATCH V9.1 (All versions), SIMATIC Information Server 2020 (All versions < V2020 SP2 Update 5), SIMATIC Information Server 2022 (All versions < V2022 SP1 Update 2), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP2 UC06), SIMATIC Process Historian 2020 (All versions < V2020 SP2 Update 5), SIMATIC Process Historian 2022 (All versions < V2022 SP1 Update 2), SIMATIC WinCC Runtime Professional V18 (All versions < V18 Update 5), SIMATIC WinCC Runtime Professional V19 (All versions < V19 Update 3), SIMATIC WinCC V7.4 (All versions), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 18), SIMATIC WinCC V8.0 (All versions < V8.0 Update 5). The affected products run their DB server with elevated privileges which could allow an authenticated attacker to execute arbitrary OS commands with administrative privileges.

Patch / fix

  • Siemens SIMATIC Information Server 2020 V2020 SP2 Update 5
  • Siemens SIMATIC Information Server 2022 V2022 SP1 Update 2
  • Siemens SIMATIC PCS 7 V9.1 V9.1 SP2 UC06
  • Siemens SIMATIC Process Historian 2020 V2020 SP2 Update 5
  • Siemens SIMATIC Process Historian 2022 V2022 SP1 Update 2
  • Siemens SIMATIC WinCC Runtime Professional V18 V18 Update 5
  • Siemens SIMATIC WinCC Runtime Professional V19 V19 Update 3
  • Siemens SIMATIC WinCC V7.5 V7.5 SP2 Update 18
  • Siemens SIMATIC WinCC V8.0 V8.0 Update 5
  • siemens simatic_wincc 7.5_sp2_update_18, 8.0_update_5

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-256-14 updated cvss 9.1

Siemens SIMATIC SCADA and PCS 7 Systems

  • Siemens SIMATIC BATCH V9.1
    affected: vendor fix
  • Siemens SIMATIC Information Server 2020 <V2020_SP2_Update_5
    affected: fixed in V2020
  • Siemens SIMATIC Information Server 2022 <V2022_SP1_Update_2
    affected: fixed in V2022
  • Siemens SIMATIC PCS 7 V9.1 <V9.1_SP2_UC06
    affected: fixed in V9.1 support.industry.siemens.com
  • Siemens SIMATIC Process Historian 2020 <V2020_SP2_Update_5
    affected: fixed in V2020
  • Siemens SIMATIC Process Historian 2022 <V2022_SP1_Update_2
    affected: fixed in V2022
  • Siemens SIMATIC WinCC Runtime Professional V18 <V18_Update_5
    affected: fixed in V18
  • Siemens SIMATIC WinCC Runtime Professional V19 <V19_Update_3
    affected: fixed in V19
show 3 more
  • Siemens SIMATIC WinCC V7.4
    affected: no fix planned
  • Siemens SIMATIC WinCC V7.5 <V7.5_SP2_Update_18
    affected: fixed in V7.5 support.industry.siemens.com
  • Siemens SIMATIC WinCC V8.0 <V8.0_Update_5
    affected: fixed in V8.0

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA 4.0 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA 4.0 9.4 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Siemens SIMATIC BATCH V9.1
  • Siemens SIMATIC Information Server 2020
  • Siemens SIMATIC Information Server 2022
  • Siemens SIMATIC PCS 7 V9.1
  • Siemens SIMATIC Process Historian 2020
  • Siemens SIMATIC Process Historian 2022
  • Siemens SIMATIC WinCC Runtime Professional V18
  • Siemens SIMATIC WinCC Runtime Professional V19
  • Siemens SIMATIC WinCC V7.4
  • Siemens SIMATIC WinCC V7.5
  • Siemens SIMATIC WinCC V8.0
  • siemens simatic_batch
  • siemens simatic_wincc

Classification

Weakness
  • CWE-250 Execution with Unnecessary Privileges

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.