CVE-2022-1158

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
31.9%
KEV
Not listed

Published

August 5, 2022

Last Modified

November 21, 2024

References (6)

Vendor Advisories for CVE-2022-1158(4)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-oem-5.14-tools-host (5.14.0-1036.40) @ focal2026-05-25ubuntu
ubuntulinux-modules-5.13.0-1033-oracle (5.13.0-1033.39~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-image-lowlatency-64k-hwe-20.04 (5.15.0.37.37) @ jammy2026-05-25ubuntu
ubuntulinux-headers-azure-fde (5.4.0.1083.87+cvm1.24) @ focal2026-05-25ubuntu
redhatkpatch-patch2022-12-15redhat
redhatkernel-0:5.14.0-70.36.1.el9_02022-12-13redhat
redhatkernel-rt-0:4.18.0-193.95.1.rt13.146.el8_22022-12-13redhat
redhatkernel-rt-0:5.14.0-70.36.1.rt21.108.el9_02022-12-13redhat
redhatkernel-0:4.18.0-193.95.1.el8_22022-12-13redhat
redhatkernel-0:4.18.0-372.36.1.el8_62022-12-06redhat
redhatkernel-rt-0:4.18.0-305.71.1.rt7.143.el8_42022-11-29redhat
redhatkernel-0:4.18.0-305.71.1.el8_42022-11-29redhat
redhatkernel-rt-0:5.14.0-162.6.1.rt21.168.el9_12022-11-15redhat
redhatkernel-0:5.14.0-162.6.1.el9_12022-11-15redhat
redhatkernel-rt-0:4.18.0-425.3.1.rt7.213.el82022-11-08redhat
redhatkernel-0:4.18.0-425.3.1.el82022-11-08redhat

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

(16)

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 12× in last 7d / 49× 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 101 total refreshes for this CVE.

  1. 2026-07-23 02:07 UTCEG score recompute
  2. 2026-07-22 22:53 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-1158?
CVE-2022-1158 is a high vulnerability published on August 5, 2022. A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and…
When was CVE-2022-1158 disclosed?
CVE-2022-1158 was first published in the National Vulnerability Database on August 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-2022-1158 actively exploited?
CVE-2022-1158 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-1158?
CVE-2022-1158 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-1158?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-1158, 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.

Dependency Blast Radius

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