How severe is CVE-2018-19871?

CVE-2018-19871 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-19871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19871?

CVE-2018-19871 primarily affects Qt. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-19871?

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

When was CVE-2018-19871 published?

CVE-2018-19871 was published on 2018-12-26 and last updated on 2026-06-17.

CVE-2018-19871

CVE-2018-19871 is a medium-severity vulnerability in Qt with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Qt
Published: 2018-12-26
Last modified: 2026-06-17

Description

An issue was discovered in Qt before 5.11.3. There is QTgaFile Uncontrolled Resource Consumption.

Frequently asked questions

What is CVE-2018-19871?: An issue was discovered in Qt before 5.11.3. There is QTgaFile Uncontrolled Resource Consumption.
How severe is CVE-2018-19871?: CVE-2018-19871 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-19871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19871?: CVE-2018-19871 primarily affects Qt. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-19871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19871 published?: CVE-2018-19871 was published on 2018-12-26 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*

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