CVE-2021-33010

Q: How do I fix CVE-2021-33010?

Upgrade system platform to 2020 or later.

Q: Is CVE-2021-33010 being actively exploited?

Not that we know of. CVE-2021-33010 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 61% of all scored CVEs.

Q: How severe is CVE-2021-33010?

CVE-2021-33010 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-33010 affect?

Published advisories record a fix for system platform (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.5

CVSS v3

NVD

Description

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.

CWE-248

How to fix

Remediation Available

system platformNVD

Affected:>= 2017, < 2020Fixed in:2020CVE-2021-33010derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.05%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory1

aveva.com

Third-Party Advisory1

cisa.gov

Related Vulnerabilities

Other CWE-248 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-59538	High	7.5	8.3%	-	Fix
CVE-2021-37714	High	7.5	6.9%	-	Fix
CVE-2025-53366	Unscored	-	6.0%	-	-
CVE-2018-11466	Critical	9.8	4.0%	-	-
CVE-2025-59465	High	7.5	3.6%	-	Fix
CVE-2018-7852	High	7.5	3.6%	-	-

Common questions

How do I fix CVE-2021-33010?

Upgrade system platform to 2020 or later.

Is CVE-2021-33010 being actively exploited?

Not that we know of. CVE-2021-33010 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 61% of all scored CVEs.

How severe is CVE-2021-33010?

CVE-2021-33010 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-33010 affect?

Published advisories record a fix for system platform (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2021-33010

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.