Is CVE-2021-3172 in the CISA KEV catalog?

No. CVE-2021-3172 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3172?

CVE-2021-3172 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2021-3172?

CVE-2021-3172 has an EPSS score of 0.65% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3172?

Upgrade php-fusion to 9.10.00 or later.

CVE & CISA-KEV Catalog

CVE-2021-3172

HIGH

8.1

CVSS v3

NVD

Description

An issue in Php-Fusion v9.03.90 fixed in v9.10.00 allows authenticated attackers to cause a Distributed Denial of Service via the Polling feature.

CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

php-fusionNVD

Affected:>= 9.03.90, < 9.10.00Fixed in:9.10.00CVE-2021-3172derived from NVD

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.65%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Related Vulnerabilities

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-3923	Critical	9.8	89%	-	Fix
CVE-2018-15379	Critical	9.8	86%	-	-
CVE-2018-1000207	High	7.2	64%	-	-
CVE-2023-32986	High	8.8	63%	-	-
CVE-2021-44521	Critical	9.1	55%	-	Fix
CVE-2018-13374	Medium	4.3	38%	KEV + Ransom	Fix

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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 2025-03-19.