How severe is CVE-2015-1859?

CVE-2015-1859 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-1859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1859?

CVE-2015-1859 primarily affects Digia Qt. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1859?

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

When was CVE-2015-1859 published?

CVE-2015-1859 was published on 2015-05-12 and last updated on 2026-06-17.

CVE-2015-1859

CVE-2015-1859 is a medium-severity vulnerability in Digia Qt with a CVSS 2.0 base score of 6.8. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Digia Qt
Published: 2015-05-12
Last modified: 2026-06-17

Description

Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash) and possibly execute arbitrary code via a crafted ICO image.

Frequently asked questions

What is CVE-2015-1859?: Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash) and possibly execute arbitrary code via a crafted ICO image.
How severe is CVE-2015-1859?: CVE-2015-1859 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-1859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1859?: CVE-2015-1859 primarily affects Digia Qt. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-1859 published?: CVE-2015-1859 was published on 2015-05-12 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
cpe:2.3:a:digia:qt:*:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.2.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:qt:qt:5.4.1:*:*:*:*:*:*:*

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