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Fencer Intel
medium 5.5

CVE-2021-33149 json

Observable behavioral discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via…

published 4y ago modified 4mo ago also EUVD-2021-19864

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

Observable behavioral discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

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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-23-341-01 updated cvss 2.5

Mitsubishi Electric FA Engineering Software Products

  • Mitsubishi Electric MELIPC MI1002-W Mitsubishi Electric MELIPC MI2012-W Mitsubishi Electric MELIPC MI3315G-W Mitsubishi Electric MELIPC MI3321G-W Mitsubishi Electric MELIPC MI5122-VW Mitsubishi Electric MELSEC iQ-R R102WCPU-W
    +4 more products
    Mitsubishi Electric MELSEC Q Q24DHCCPU-LS Mitsubishi Electric MELSEC Q Q24DHCCPU-V Mitsubishi Electric MELSEC Q Q24DHCCPU-VG Mitsubishi Electric MELSEC Q Q26DHCCPU-LS
    affected: mitigation “Mitsubishi Electric recommends that users take the following mitigation measures to minimize the risk of exploiting these vulnerabilities:” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

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

Affected products

  • n/a Intel(R) Processors

Classification

Weakness

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.