CVE-2019-20485

5.7 MEDIUM 0.8% exploit odds Fix listed

What it is

qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).

At a glance

Exploitability: Can be exploited from the same network segment with a low-privilege account. High risk of service disruption.
Exploit odds: 0.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-03-19 02:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:30 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.8% in the next 30 days (EPSS).
Severity: 5.7 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-03-19 02:15 UTC
Last modified: 2026-06-17 02:30 UTC
Exploit probability: 0.8% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Redhat Libvirt < 6.0.0
Debian Linux 8.0
Debian Linux 9.0
Debian Linux 10.0
Fedoraproject Fedora 31

Attack profile CVSS 3.1 · 5.7

Attack vector: Adjacent network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-20485.md and follow it. Check whether this project is affected by CVE-2019-20485. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record