CVE-2023-34410

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.

Published: 2023-06-04 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

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.

Exploit prediction scoring system (EPSS) score for CVE-2023-34410

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)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34410

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-34410

OS Trackers for CVE-2023-34410

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

Affected software / configurations for 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:*:*:*:*:*:*:*:*

References for CVE-2023-34410

cvelogic Threat Intelligence