CVE-2019-19922

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory (severity: LOW) published 2022-05-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfs_quota_us is used (e.g., with Kubernetes), allows attackers to cause a denial of service against non-cpu-bound applications by generating a workload that triggers unwanted slice expiration, aka CID-de53fd7aedb1. (In other words, although this slice expiration would typically be seen with benign workloads, it is possible that an attacker could calculate how many stray requests are required to force an entire Kubernetes cluster into a low-performance state caused by slice expiration, and ensure that a DDoS attack sent that number of stray requests. An attack does not affect the stability of the kernel; it only causes mismanagement of application execution.)

CVSS v3
5.5
EG Score
5.5(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
Severity55% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
57.5%
KEV
Not listed

Published

December 22, 2019

Last Modified

November 21, 2024

References (18)

Vendor Advisories for CVE-2019-19922(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-virtual (5.0.0.38.40) @ disco2026-05-27ubuntu
redhatkernel-rt-0:4.18.0-193.rt13.51.el82020-04-28redhat
redhatkernel-0:4.18.0-193.el82020-04-28redhat
redhatkernel-alt-0:4.14.0-115.19.1.el7a2020-04-16redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 15× in last 7d / 47× 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.

  1. 2026-07-23 01:43 UTCEG score recompute
  2. 2026-07-22 22:23 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  8. 2026-07-19 23:19 UTCOSV refresh
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  1. 2026-07-08 15:11 UTCEPSS rescore
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  3. 2026-07-06 16:25 UTCEPSS rescore
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  6. 2026-07-05 02:27 UTCEPSS rescore
  7. 2026-07-04 06:28 UTCEPSS rescore
  8. 2026-07-02 14:00 UTCOSV refresh
  9. 2026-07-01 15:03 UTCEPSS rescore
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  30. 2026-06-18 17:50 UTCEPSS rescore
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  36. 2026-06-14 12:13 UTCOSV refresh
  37. 2026-06-13 22:58 UTCEPSS rescore
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  40. 2026-06-10 22:16 UTCEPSS rescore
  41. 2026-06-10 13:19 UTCEPSS rescore
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  45. 2026-06-06 13:45 UTCEPSS rescore
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  63. 2026-05-27 13:38 UTCEPSS rescore
  64. 2026-05-27 10:00 UTCEG score recompute
  65. 2026-05-27 10:00 UTCVendor advisory
  66. 2026-05-27 10:00 UTCGHSA enrichment
  67. 2026-05-26 13:42 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2019-19922?
CVE-2019-19922 is a medium vulnerability published on December 22, 2019. kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfsquotaus is used (e.g., with Kubernetes), allows attackers to cause a denial of service against non-cpu-bound applications by generating a workload that triggers unwanted slice expiration, aka CID-de53fd7aedb1. (In other words,…
When was CVE-2019-19922 disclosed?
CVE-2019-19922 was first published in the National Vulnerability Database on December 22, 2019, 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-2019-19922 actively exploited?
CVE-2019-19922 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-19922?
CVE-2019-19922 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2019-19922?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-19922, 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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