What is CVE-2025-30348?

CVE-2025-30348 is a medium-severity vulnerability in Qt, classified under Inefficient Algorithmic Complexity. CVSS score: 5.8/10. Published 2025-03-21.

How severe is CVE-2025-30348?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Vulnerability in Qt

CVE-2025-30348

encodeText in QDom in Qt before 6.8.0 has a complex algorithm involving XML string copy and inline replacement of parts of a string (with relocation of later data).

EPSS: 0.003 (26.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Qt — versions 0, 6.0.0, 6.6.0

Weakness classification (CWE)

CWE-407 — Inefficient Algorithmic Complexity

References

cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2025-30348?: CVE-2025-30348 is a medium-severity vulnerability in Qt, classified under Inefficient Algorithmic Complexity. CVSS score: 5.8/10. Published 2025-03-21.
How severe is CVE-2025-30348?: Medium severity. CVSS v3 base score is 5.8 out of 10.