CVE-2020-10701: A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response tim

Q: How do I fix CVE-2020-10701?

libvirt: upgrade to 6.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-10701 being exploited?

CVE-2020-10701 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-10701 affect?

CVE-2020-10701 affects libvirt. Severity is medium (CVSS 6.5). A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent co

Q: How urgent is CVE-2020-10701?

Priority 42/100. On your watchlist

This month

MEDIUM 6.5WATCHLISTUPGRADE

CVE-2020-10701 is a medium-severity flaw (CVSS 6.5) affecting libvirt. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-862
Published	2021-05-27
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-05-27 19:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

redhat libvirt UPGRADE

Affected: < 6.2.0

Fixed in: 6.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libvirt || rpm -q libvirt || libvirt --version

2. UPGRADE to 6.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libvirt

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libvirt

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-10701?

libvirt: upgrade to 6.2.0. Exact commands for each OS are on this page.

Is CVE-2020-10701 being exploited?

CVE-2020-10701 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-10701 affect?

CVE-2020-10701 affects libvirt. Severity is medium (CVSS 6.5). A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent co

How urgent is CVE-2020-10701?

Priority 42/100. On your watchlist

Software pages

QEMU vulnerabilities

Related CVEs

CVE-2024-8235 MEDIUM 6.2 UPGRADE A flaw was found in libvirt
CVE-2024-2496 MEDIUM 5.0 UPGRADE MITIGATE A NULL pointer dereference flaw was found in the udevConnectListAllInterfaces() function in libvirt
CVE-2023-3750 MEDIUM 6.5 MITIGATE MITIGATE A flaw was found in libvirt
CVE-2023-2700 MEDIUM 5.5 DOWNGRADE MITIGATE A vulnerability was found in libvirt
CVE-2022-0897 MEDIUM 4.3 UPGRADE MITIGATE A flaw was found in the libvirt nwfilter driver

References

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