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TI-2025-21654 Aliases CVE-2025-30348GHSA-hc3c-6xqp-r265

encodeText in QDom in Qt before 6.8.0 has a complex algorithm involving XML string copy…

Priority LOW 32CWE-407Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-407.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00369 30th percentileScored 2026-11-07
Fix Fixed Qt (Qt): 5.15.19, 6.5.9, 6.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
qtQtbefore 5.15.19; 6.0.0 to before 6.5.9; 6.6.0 to before 6.8.05.15.19, 6.5.9, 6.8.0Patch availableCNA
  • Qt Vendorqt Affected before 5.15.19; 6.0.0 to before 6.5.9; 6.6.0 to before 6.8.0 Fixed in 5.15.19, 6.5.9, 6.8.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*before 5.15.19; 6.0.0 to before 6.5.9; 6.6.0 to before 6.8.0Vulnerableqt
  • cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* Versions before 5.15.19; 6.0.0 to before 6.5.9; 6.6.0 to before 6.8.0 Vulnerable ·qt

Remediation

  • Fix · CNA Qt (Qt) Fixed in 5.15.19, 6.5.9, 6.8.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-30348
  2. 2026-10-03 Alias added: GHSA-hc3c-6xqp-r265

References

Patch 1

  • TI-2024-23902 QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x… CVSS 3.1CRITICAL 9.8
  • TI-2022-21359 Heap-based buffer overflow in Qt CVSS 3.1HIGH 8.8
  • TI-2022-19524 Integer overflow in Qt CVSS 3.1HIGH 8.8
  • TI-2023-18997 In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can… CVSS 3.1HIGH 7.5
  • TI-2021-09305 Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0… CVSS 3.1MEDIUM 5.5
  • TI-2023-28356 An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before… CVSS 3.1CRITICAL 9.8
See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences