How severe is CVE-2019-15034?

CVE-2019-15034 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2019-15034 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15034?

CVE-2019-15034 affects Qemu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15034?

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

When was CVE-2019-15034 published?

CVE-2019-15034 was published on 2020-03-10 and last updated on 2026-06-17.

CVE-2019-15034

CVE-2019-15034 is a medium-severity vulnerability in Qemu with a CVSS 3.x base score of 5.8. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
CVSS v2: 4.4
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Qemu
Published: 2020-03-10
Last modified: 2026-06-17

Description

hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.

Frequently asked questions

What is CVE-2019-15034?: hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.
How severe is CVE-2019-15034?: CVE-2019-15034 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2019-15034 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15034?: CVE-2019-15034 affects Qemu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15034?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15034 published?: CVE-2019-15034 was published on 2020-03-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*

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