How severe is CVE-2018-15746?

CVE-2018-15746 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-15746 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15746?

CVE-2018-15746 affects Qemu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15746?

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

When was CVE-2018-15746 published?

CVE-2018-15746 was published on 2018-08-29 and last updated on 2026-06-17.

CVE-2018-15746

CVE-2018-15746 is a medium-severity vulnerability in Qemu with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Qemu
Published: 2018-08-29
Last modified: 2026-06-17

Description

qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread.

Frequently asked questions

What is CVE-2018-15746?: qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread.
How severe is CVE-2018-15746?: CVE-2018-15746 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-15746 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15746?: CVE-2018-15746 affects Qemu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15746?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-15746 published?: CVE-2018-15746 was published on 2018-08-29 and last updated on 2026-06-17.

References

Affected products (1)

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

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