How severe is CVE-2013-4377?

CVE-2013-4377 has a CVSS 2.0 base score of 2.3, rated low severity.

Is CVE-2013-4377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4377?

CVE-2013-4377 primarily affects Qemu. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4377?

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

When was CVE-2013-4377 published?

CVE-2013-4377 was published on 2013-10-11 and last updated on 2026-06-16.

CVE-2013-4377

CVE-2013-4377 is a low-severity vulnerability in Qemu with a CVSS 2.0 base score of 2.3. 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-399.

Key facts

Severity: Low (CVSS 2.0 base score 2.3)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Qemu
Published: 2013-10-11
Last modified: 2026-06-16

Description

Use-after-free vulnerability in the virtio-pci implementation in Qemu 1.4.0 through 1.6.0 allows local users to cause a denial of service (daemon crash) by "hot-unplugging" a virtio device.

Frequently asked questions

What is CVE-2013-4377?: Use-after-free vulnerability in the virtio-pci implementation in Qemu 1.4.0 through 1.6.0 allows local users to cause a denial of service (daemon crash) by "hot-unplugging" a virtio device.
How severe is CVE-2013-4377?: CVE-2013-4377 has a CVSS 2.0 base score of 2.3, rated low severity.
Is CVE-2013-4377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4377?: CVE-2013-4377 primarily affects Qemu. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4377 published?: CVE-2013-4377 was published on 2013-10-11 and last updated on 2026-06-16.

References

Affected products (14)

cpe:2.3:a:qemu:qemu:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.0:rc3:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.6.0:rc2:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:1.6.0:rc3:*:*:*:*:*:*

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CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
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