CVE-2025-10729

Application crash via dangling SVG pattern pointer

Published Oct 3, 2025 · Updated Oct 3, 2025

Use-after-free in Qt SVG in Qt Framework 6.7.0 through 6.8.4 and 6.9.0 through 6.9.2 allows attackers to crash applications via crafted SVG files. qsvghandler.cpp accepts a pattern element outside a structural parent, creates and deletes its node, then retains a pointer that later parsing can dereference. An application must process attacker-controlled SVG content through Qt SVG; the documented consequence is an application crash, not a demonstrated code-execution path.

CVSS severity9.4
Critical
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Qt SVG in Qt Framework 6.7.0 through 6.8.4 and 6.9.0 through 6.9.2 allows attackers to crash applications via crafted SVG files. qsvghandler.cpp accepts a pattern element outside a structural parent, creates and deletes its node, then retains a pointer that later parsing can dereference. An application must process attacker-controlled SVG content through Qt SVG; the documented consequence is an application crash, not a demonstrated code-execution path.

The record

CVE
CVE-2025-10729
Published
Oct 3, 2025
Updated
Oct 3, 2025
Vendor
The Qt Company
Product
Qt Framework
Classifications
CWE-416, CAPEC-129
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7.0 <=6.8.4
  2. Affected versionversion=6.9.0 <=6.9.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Qt Company · Qt Frameworkversion=6.7.0 <=6.8.4; version=6.9.0 <=6.9.2

Published CVSS scores

9.4The Qt CompanyCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
CAPEC-129Pointer Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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