How severe is CVE-2023-38197?

CVE-2023-38197 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-2023-38197 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38197?

CVE-2023-38197 affects Qt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38197?

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-2023-38197 published?

CVE-2023-38197 was published on 2023-07-13 and last updated on 2026-06-17.

CVE-2023-38197

CVE-2023-38197 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-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-835
Affected product: Qt
Published: 2023-07-13
Last modified: 2026-06-17

Description

An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.

Frequently asked questions

What is CVE-2023-38197?: An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.
How severe is CVE-2023-38197?: CVE-2023-38197 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-2023-38197 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38197?: CVE-2023-38197 affects Qt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38197?: 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-2023-38197 published?: CVE-2023-38197 was published on 2023-07-13 and last updated on 2026-06-17.

References

Affected products (1)

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

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