CVE-2022-42046

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-12-21. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
7.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.8Exploit: Public PoCExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

wfshbr64.sys and wfshbr32.sys specially crafted IOCTL allows arbitrary user to perform local privilege escalation

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
51
EG Risk 51/100

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 (value × EchelonGraph’s weight)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 20, 2022

Last Modified

April 17, 2025

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 29× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 88 of 169 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 12 repeat rows among the latest 100 are merged into the row they repeat. The 81 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-10-12 18:47 UTCEG score recompute
  4. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-11 22:10 UTCEG score recompute
  6. 2026-10-11 13:44 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  7. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  10. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  16. 2026-10-01 19:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-09-30 16:06 UTCEG score recompute
  18. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-09-28 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  22. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  24. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  1. 2026-09-19 15:38 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-09-16 05:10 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  5. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  6. 2026-09-12 14:57 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  8. 2026-09-11 09:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-09-07 15:58 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  15. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  17. 2026-08-30 19:14 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-08-24 14:13 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  26. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  27. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  28. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  29. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  30. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  33. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  34. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  35. 2026-08-11 13:39 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  36. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  37. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  46. 2026-07-30 16:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  48. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  52. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  53. 2026-07-23 02:14 UTCEG score recompute
  54. 2026-07-22 23:01 UTCEG score recompute
  55. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  61. 2026-07-15 16:56 UTCEPSS rescoreEPSS 0.5% · 37th percentile
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  63. 2026-07-13 22:28 UTCEPSS rescoreEPSS 0.5% · 37th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). No release with the fix is confirmed, so defenders should restrict or isolate affected systems accordingly until one is applied.

  • GitHub PoCkkent030315/CVE-2022-42046
    Published Aug 17, 2022

    CVE-2022-42046 Proof of Concept of wfshbr64.sys local privilege escalation via DKOM

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-42046?
CVE-2022-42046 is a high-severity vulnerability; its CVE record was published on December 20, 2022. wfshbr64.sys and wfshbr32.sys specially crafted IOCTL allows arbitrary user to perform local privilege escalation
When was the CVE record for CVE-2022-42046 published?
The CVE record for CVE-2022-42046 was published on December 20, 2022. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 17, 2025; the record at its source may have been updated since.
Is CVE-2022-42046 actively exploited?
CVE-2022-42046 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-42046?
CVE-2022-42046 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-42046?
A fix for CVE-2022-42046 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

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