Is CVE-2021-45930 in the CISA KEV catalog?

No. CVE-2021-45930 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-45930?

CVE-2021-45930 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-45930?

CVE-2021-45930 has an EPSS score of 1.34% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-45930?

Upgrade qtsvg-opensource-src on debian 12 to 5.15.2-4 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-45930

MEDIUM

5.5

CVSS v3

NVD

Description

Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).

CWE-787Out-of-bounds Write

How to fix

Remediation Available

qtsvg-opensource-srcDebian

Fixed in:5.15.2-4CVE-2021-45930

libqt5svg5Ubuntu

Fixed in:5.5.1-2ubuntu0.1~esm1USN-8337-1

Fixed in:5.9.5-0ubuntu1.1+esm1USN-8337-1

Fixed in:5.9.5-0ubuntu1.1USN-5241-1

Fixed in:5.12.8-0ubuntu1+esm1USN-8337-1

Fixed in:5.15.3-1ubuntu0.1~esm1USN-8337-1

qtsvg-opensource-srcUbuntu

Fixed in:5.5.1-2ubuntu0.1~esm1USN-8337-1

Fixed in:5.9.5-0ubuntu1.1USN-5241-1

Fixed in:5.9.5-0ubuntu1.1+esm1USN-8337-1

Fixed in:5.12.8-0ubuntu1+esm1USN-8337-1

Fixed in:5.15.3-1ubuntu0.1~esm1USN-8337-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.34%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch3

Exploit3

Third-Party Advisory2

Other references4

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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 2024-11-21.