How severe is CVE-2023-32763?

CVE-2023-32763 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-32763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32763?

CVE-2023-32763 affects Qt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32763?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-32763 published?

CVE-2023-32763 was published on 2023-05-28 and last updated on 2026-06-17.

CVE-2023-32763

CVE-2023-32763 is a high-severity vulnerability in Qt with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Qt
Published: 2023-05-28
Last modified: 2026-06-17

Description

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. When a SVG file with an image inside it is rendered, a QTextLayout buffer overflow can be triggered.

Frequently asked questions

What is CVE-2023-32763?: An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. When a SVG file with an image inside it is rendered, a QTextLayout buffer overflow can be triggered.
How severe is CVE-2023-32763?: CVE-2023-32763 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-32763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32763?: CVE-2023-32763 affects Qt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32763?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-32763 published?: CVE-2023-32763 was published on 2023-05-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*

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