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CVE-2025-10729

32
FAUCET Score

CVE-2025-10729 is a critical use-after-free vulnerability (CWE-416) that occurs when a malformed pattern node is parsed and then deleted, but subsequently accessed, leading to memory corruption. While specific affected products are not detailed, its CVSSv4 score of 9.4 indicates a severe impact. The vulnerability is assessed as having a low attack complexity and no user interaction required, allowing for high confidentiality, integrity, and availability impacts. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog, suggesting it is not under active widespread exploitation. However, its mention in a BleepingComputer article regarding Microsoft's October 2025 Patch Tuesday and community discussion indicate some awareness.

Impacted Technologies

VendorProductVersion(s)CPE
The Qt CompanyQt
>= 6.7.0, <= 6.8.4, >= 6.9.0, <= 6.9.2CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

9.4CRITICAL

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:H/U:Red

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 55th percentile among its peer group of 79 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.7 Bluesky, 0.3 Mastodon, and 1.0 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: 20512-17084Fixed in: 6.6.1-3
microsoftpatch availablevia msrc
Product: 19089-17086Fixed in: 5.12.11-7
microsoftpatch availablevia msrc
Product: azl3 qtsvg 6.6.1-2 on Azure Linux 3.0Fixed in: 6.6.1-3
microsoftpatch availablevia msrc
Product: cbl2 qt5-qtsvg 5.12.11-6 on CBL Mariner 2.0Fixed in: 5.12.11-7
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: qt6-qtsvg-0:6.8.1-1.el10_0.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: qt6-qtsvg-0:6.9.1-2.el10_1.1
View patch

Vendor Advisories (2)

microsoft2025-Oct/CVE-2025-10729Important

Use-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVG

Oct 14, 2025
redhatCVE-2025-10729Important

qtsvg: Use-after-free vulnerability in Qt SVG

Oct 3, 2025

References

codereview.qt-project.org / c/qt/qtsvg/+/676473