Use After Free in Qt

CVE-2024-30161

In Qt 6.5.4, 6.5.5, and 6.6.2, QNetworkReply header data might be accessed via a dangling pointer in Qt for WebAssembly (wasm). (Earlier and later versions are unaffected.)

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (37.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-30161: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Qt — versions 6.5.4, 6.5.5, 6.6.2

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-30161?
CVE-2024-30161 is a medium-severity vulnerability in Qt, classified under Use After Free. CVSS score: 6.5/10. Published 2024-03-24.
How severe is CVE-2024-30161?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2024-30161 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.