How severe is CVE-2012-6093?

CVE-2012-6093 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-6093 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6093?

CVE-2012-6093 primarily affects Qt. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-6093?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-6093 published?

CVE-2012-6093 was published on 2013-02-24 and last updated on 2026-06-16.

CVE-2012-6093

CVE-2012-6093 is a medium-severity vulnerability in Qt with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Qt
Published: 2013-02-24
Last modified: 2026-06-16

Description

The QSslSocket::sslErrors function in Qt before 4.6.5, 4.7.x before 4.7.6, 4.8.x before 4.8.5, when using certain versions of openSSL, uses an "incompatible structure layout" that can read memory from the wrong location, which causes Qt to report an incorrect error when certificate validation fails and might cause users to make unsafe security decisions to accept a certificate.

Frequently asked questions

What is CVE-2012-6093?: The QSslSocket::sslErrors function in Qt before 4.6.5, 4.7.x before 4.7.6, 4.8.x before 4.8.5, when using certain versions of openSSL, uses an "incompatible structure layout" that can read memory from the wrong location, which causes Qt to report an incorrect error when certificate validation fails and might cause users to make unsafe security decisions to accept a certificate.
How severe is CVE-2012-6093?: CVE-2012-6093 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-6093 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6093?: CVE-2012-6093 primarily affects Qt. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6093?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-6093 published?: CVE-2012-6093 was published on 2013-02-24 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:qt:qt:*:rc:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.3:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.6.4:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.1:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.2:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.3:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.4:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.5:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.7.6:rc:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.8.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.8.1:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.8.2:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.8.3:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:4.8.4:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*

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