CVE-2019-20485

MEDIUMNVD 5.75.7—
EchelonGraph scoreMEDIUM confidence

Score 5.7 from GitHub Security Advisory (severity: LOW) published 2022-05-24. NVD baseline CVSS 5.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.7Exploit: None knownExposed: 0

A fix is available — apply it.

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).

CVSS v3
5.7
EG Score
5.7(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity57% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

March 19, 2020

Last Modified

November 21, 2024

References (12)

Vendor Advisories for CVE-2019-20485(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatvirt:rhel-8030020200909014558.30b713e62020-11-04redhat
redhatlibvirt-0:4.5.0-36.el72020-09-29redhat
redhatvirt-devel:8.2-8020020200414225921.6a468ee42020-05-05redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFixed inDependents
libvirt0.10.0-r0 ... 5.5.0-r1 (153 versions)5.5.0-r2—
Alpine:v3.11(1)
PackageVulnerable rangeFixed inDependents
libvirt0.10.0-r0 ... 5.9.0-r1 (157 versions)5.9.0-r2—
Alpine:v3.9(1)
PackageVulnerable rangeFixed inDependents
libvirt0.10.0-r0 ... 5.5.0-r1 (147 versions)5.5.0-r2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libvirt—6.0.0-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libvirt—6.0.0-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libvirt—6.0.0-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libvirt—6.0.0-2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 28× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 121 total refreshes for this CVE.

  1. 2026-08-21 23:45 UTCEPSS rescore
  2. 2026-08-21 01:51 UTCOSV refresh
  3. 2026-08-20 22:51 UTCEPSS rescore
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  16. 2026-08-05 17:40 UTCOSV refresh
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  3. 2026-07-23 01:43 UTCEG score recompute
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  10. 2026-07-19 16:18 UTCOSV refresh
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  25. 2026-07-11 08:24 UTCEPSS rescore
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  27. 2026-07-09 19:06 UTCEPSS rescore
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  63. 2026-06-14 06:43 UTCOSV refresh
  64. 2026-06-13 22:58 UTCEPSS rescore
  65. 2026-06-12 23:09 UTCEPSS rescore
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  74. 2026-06-05 22:45 UTCEPSS rescore
  75. 2026-06-05 22:45 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2019-20485?
CVE-2019-20485 is a medium vulnerability published on March 19, 2020. 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).
When was CVE-2019-20485 disclosed?
CVE-2019-20485 was first published in the National Vulnerability Database on March 19, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-20485 actively exploited?
CVE-2019-20485 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.7% of all scored CVEs.
What is the CVSS score of CVE-2019-20485?
CVE-2019-20485 has a CVSS v3 base score of 5.7 (NVD).
How do I remediate CVE-2019-20485?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-20485, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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