CVE-2022-33744

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

Score 4.7 from GitHub Security Advisory published 2022-07-06. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.7Exploit: NoneExposed: 0

A fix is available — apply it.

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.

CVSS v3
4.7
EG Score
4.7(medium)
EG Risk
26(Track)
EG Risk 26/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
23.1%
KEV
Not listed

Published

July 5, 2022

Last Modified

November 21, 2024

References (10)

Patch Availability(20)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-intel-iotg-headers-5.15.0-1016 (5.15.0-1016.21) @ jammy2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1018-gcp (5.15.0-1018.24~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-image-unsigned-5.15.0-1016-gke (5.15.0-1016.19) @ jammy2026-05-25ubuntu
ubuntulinux-headers-5.15.0-1016-gke (5.15.0-1016.19~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-modules-extra-gkeop-5.15 (5.15.0.1003.5) @ jammy2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1018-oracle (5.15.0-1018.23) @ jammy2026-05-25ubuntu
ubuntulinux-image-5.15.0-1018-kvm (5.15.0-1018.22) @ jammy2026-05-25ubuntu
ubuntulinux-headers-lowlatency-64k-hwe-20.04-edge (5.15.0.48.54~20.04.16) @ focal2026-05-25ubuntu
ubuntulinux-image-lowlatency (5.4.0.128.129) @ focal2026-05-25ubuntu
ubuntulinux-signed-image-lowlatency-hwe-16.04-edge (4.15.0.194.179) @ bionic2026-05-25ubuntu
ubuntulinux-tools-virtual-hwe-16.04 (4.15.0.194.181) @ xenial2026-05-25ubuntu
ubuntulinux-aws-headers-4.15.0-1142 (4.15.0-1142.154~16.04.1) @ xenial2026-05-25ubuntu
ubuntulinux-image-unsigned-4.15.0-1142-aws (4.15.0-1142.154) @ bionic2026-05-25ubuntu
ubuntulinux-image-unsigned-5.15.0-1015-ibm (5.15.0-1015.17) @ jammy2026-05-25ubuntu
ubuntulinux-signed-image-azure (4.15.0.1153.140) @ xenial2026-05-25ubuntu
ubuntulinux-image-raspi2-hwe-18.04 (5.4.0.1071.104) @ focal2026-05-25ubuntu
ubuntulinux-headers-5.4.0-1086-aws (5.4.0-1086.93~18.04.1) @ bionic2026-05-25ubuntu
ubuntulinux-image-azure-lts-18.04 (4.15.0.1153.123) @ bionic2026-05-25ubuntu
ubuntulinux-headers-azure-fde (5.4.0.1092.97+cvm1.32) @ focal2026-05-25ubuntu
ubuntulinux-gcp (4.15.0.1137.131) @ xenial2026-05-25ubuntu

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.

All Vendor Advisories

(21)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× 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.

Showing the most recent 100 of 109 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-24 14:15 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:11 UTCEG score recompute
  5. 2026-07-22 22:59 UTCEG score recompute
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  15. 2026-07-17 04:24 UTCOSV refresh
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  1. 2026-07-12 05:44 UTCEPSS rescore
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  5. 2026-07-07 13:44 UTCEPSS rescore
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  14. 2026-06-29 14:04 UTCEPSS rescore
  15. 2026-06-29 02:32 UTCOSV refresh
  16. 2026-06-28 14:06 UTCEPSS rescore
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  43. 2026-06-12 23:10 UTCEPSS rescore
  44. 2026-06-12 23:10 UTCEPSS rescore
  45. 2026-06-11 22:25 UTCOSV refresh
  46. 2026-06-11 13:58 UTCEPSS rescore
  47. 2026-06-11 13:58 UTCEPSS rescore
  48. 2026-06-10 22:17 UTCEPSS rescore
  49. 2026-06-10 13:20 UTCEPSS rescore
  50. 2026-06-08 14:15 UTCEPSS rescore
  51. 2026-06-08 14:15 UTCEPSS rescore
  52. 2026-06-07 15:23 UTCEPSS rescore
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  74. 2026-05-27 13:39 UTCEPSS rescore
  75. 2026-05-27 13:39 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2022-33744?
CVE-2022-33744 is a medium vulnerability published on July 5, 2022. Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged…
When was CVE-2022-33744 disclosed?
CVE-2022-33744 was first published in the National Vulnerability Database on July 5, 2022, 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-2022-33744 actively exploited?
CVE-2022-33744 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-33744?
CVE-2022-33744 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2022-33744?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-33744, 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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