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Fencer Intel
medium 5.5

CVE-2020-24486 json

Improper input validation in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable denial of serv…

published 5y ago modified last mo. also EUVD-2020-17206

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

Improper input validation in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access.

Patch / fix

Is CVE-2020-24486 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-21-222-05 updated cvss 5.5

Siemens Industrial Products Intel CPUs (Update F)

  • Siemens SIMATIC IPC347G <V01.04.00
    affected: fixed in V01.04.00, mitigation support.industry.siemens.com
  • Siemens SIMATIC IPC547G
    affected: mitigation, no fix planned
  • Siemens SIMATIC IPC3000 SMART V3 <V01.04.00
    affected: fixed in V01.04.00, 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 <V05.00.00.00
    affected: fixed in V05.00.00.00, 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a Intel(R) Processors

Classification

Weakness
  • CWE-20 Improper Input Validation

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.