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Fencer Intel
medium 6.8

CVE-2020-8745 json

Insufficient control flow management in subsystem for Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10…

published 5y ago modified 4mo ago also EUVD-2020-29593

cvss
6.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

Insufficient control flow management in subsystem for Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25 , Intel(R) TXE versions before 3.1.80 and 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Patch / fix

  • intel converged_security_and_manageability_engine 11.8.80, 11.12.80, 11.22.80, 12.0.70, 14.0.45, 14.5.25
  • intel trusted_execution_technology 3.1.80, 4.0.30
  • siemens simatic_drive_controller_firmware 05.00.01.00
  • siemens simatic_et200sp_1515sp_pc2_firmware 0209.0105
  • siemens simatic_field_pg_m5_firmware 22.01.08
  • siemens simatic_ipc127e_firmware 27.01.05
  • siemens simatic_ipc427e_firmware 27.01.05
  • siemens simatic_ipc477e_firmware 21.01.15
  • siemens simatic_ipc527g_firmware 1.4.0
  • siemens simatic_ipc547g_firmware r1.30.0
  • siemens simatic_ipc627e_firmware 25.02.08
  • siemens simatic_ipc647e_firmware 25.02.08
  • siemens simatic_ipc667e_firmware 25.02.08
  • siemens simatic_ipc847e_firmware 25.02.08
  • siemens simatic_itp1000_firmware 23.01.08
  • siemens sinumerik_828d_hw_pu.4_firmware 08.00.00.00
  • siemens sinumerik_mc_mcu_1720_firmware 05.00.00.00
  • siemens sinumerik_one_ncu_1740_firmware 04.00.00.00
  • siemens sinumerik_one_ppu_1740_firmware 06.00.00.00

Is CVE-2020-8745 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

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

cisa ICSA-22-132-05 updated cvss 6.8

Siemens Industrial PCs and CNC devices

  • Siemens SIMATIC Drive Controller family <V05.00.01.00
    affected: fixed in V05.00.01.00, mitigation
  • Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) <V0209_0105
    affected: fixed in V0209_0105, mitigation support.industry.siemens.com
  • Siemens SIMATIC Field PG M5 <BIOS_V22.01.08
    affected: fixed in V22.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC Field PG M6 <V26.01.08
    affected: fixed in V26.01.08, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC127E
    affected: fixed in V27.01.05, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC427E (incl. SIPLUS variants) <BIOS_V21.01.15 Siemens SIMATIC IPC477E <BIOS_V21.01.15 Siemens SIMATIC IPC477E Pro <BIOS_V21.01.15
    affected: fixed in V21.01.15, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC527G <BIOS_V1.4.0
    affected: fixed in V1.4.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC627E <BIOS_V25.02.08 Siemens SIMATIC IPC647E <BIOS_V25.02.08 Siemens SIMATIC IPC677E <BIOS_V25.02.08 Siemens SIMATIC IPC847E <BIOS_V25.02.08
    affected: fixed in V25.02.08, mitigation support.industry.siemens.com
show 6 more
  • Siemens SIMATIC ITP1000 <BIOS_V23.01.08
    affected: fixed in V23.01.08, mitigation support.industry.siemens.com
  • Siemens SINUMERIK 828D HW PU.4 <V08.00.00.00
    affected: fixed in V08.00.00.00, mitigation
  • Siemens SINUMERIK MC MCU 1720 <V05.00.00.00
    affected: fixed in V05.00.00.00, mitigation
  • Siemens SINUMERIK ONE / SINUMERIK 840D sl Handheld Terminal HT 10 <V08.00.00.00
    affected: fixed in V08.00.00.00, mitigation
  • Siemens SINUMERIK ONE NCU 1740 <V04.00.00.00
    affected: fixed in V04.00.00.00, mitigation
  • Siemens SINUMERIK ONE PPU 1740 <V06.00.00.00
    affected: fixed in V06.00.00.00, mitigation

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

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Intel(R) CSME, Intel(R) TXE

References

Sources

Fencer Intel 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.