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Fencer Intel
high 7.5

CVE-2021-33010 json

AVEVA System Platform Uncaught Exception

published 4y ago modified 4mo ago also EUVD-2021-19731

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

An exception is thrown from a function in AVEVA System Platform versions 2017 through 2020 R2 P01, but it is not caught, which may cause a denial-of-service condition.

Patch / fix

  • aveva system_platform 2020

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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-21-180-05 updated cvss 7.5

AVEVA System Platform (Update A)

  • AVEVA Software, LLC AVEVA System Platform >= 2017, <= 2020 R2 P01
    affected: mitigation “AVEVA recommends organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation.” softwaresupportsp.aveva.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
yes
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • AVEVA AVEVA System Platform

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.