An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2. Certificate validation for TLS does not always consider whether the root of a chain is a configured CA certificate.
Conclusion & alert: CVE-2023-34410 is rated Low Risk (39.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.73%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.11% | 0.73% | +0.62% |
| 2 | 2025-11-21 | 0.25% | 0.11% | -0.15% |
| 3 | 2025-11-18 | — | 0.25% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-34410 not yet assigned priority: Debian including 3 source packages (qt6-base, qtbase-opensource-src, qtbase-opensource-src-gles), 14 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 11, open 3. | https://security-tracker.debian.org/tracker/CVE-2023-34410 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-34410 |
suse
|
medium | CVE-2023-34410 severity moderate: SUSE including 1051 source package names (adwaita-qt5-1.4.2-1.el9, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 2104 product×package rows across 88 product lines (Image SLES12-SP5-Azure-SAP-BYOS, Image SLES12-SP5-Azure-SAP-On-Demand, … (88 product lines)): Fixed 1779, Known Affected 231, Known Not Affected 94. | https://www.suse.com/security/cve/CVE-2023-34410/ |
ubuntu
|
medium | CVE-2023-34410 medium priority: Ubuntu including 4 source packages (qt4-x11, qt6-base, qtbase-opensource-src, qtbase-opensource-src-gles), 52 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 20, needs-triage 14, DNE 10, released 5, not-affected 3. | https://ubuntu.com/security/CVE-2023-34410 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
| qt | qt | >= 5.13.0, < 5.15.15 | cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* |
| qt | qt | >= 6.0.0, < 6.2.9 | cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* |
| qt | qt | >= 6.3.0, < 6.5.2 | cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://codereview.qt-project.org/c/qt/qtbase/+/477560 | Patch |
| https://codereview.qt-project.org/c/qt/qtbase/+/480002 | Patch |
| https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UE3IHQZCEUFVOPWG75V2HDKXNUZBB4FX/ | Mailing List Third Party Advisory |