CVE-2022-26770

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 2022-05-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in Security Update 2022-004 Catalina, macOS Monterey 12.4, macOS Big Sur 11.6.6. A malicious application may be able to execute arbitrary code with kernel privileges.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
36
EG Risk 36/100

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.
Exploitation1.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
1.1%
EPSS %ILE
63rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (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

May 26, 2022

Last Modified

May 30, 2025

Advisory Details (3)

Auto-updated Oct 11, 2026
Fix named in the CVE record.
Web page

About the security content of macOS Monterey 12.4 - Apple Support

https://support.apple.com/en-us/HT213257
Web page

About the security content of macOS Big Sur 11.6.6 - Apple Support

https://support.apple.com/en-us/HT213256
Web page

About the security content of Security Update 2022-004 Catalina - Apple Support

https://support.apple.com/en-us/HT213255

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 24× 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 89 of 159 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. 11 repeat rows among the latest 100 are merged into the row they repeat. The 70 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 23:22 UTCEG score recompute
  2. 2026-10-11 13:44 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  3. 2026-10-10 19:56 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  4. 2026-10-09 20:04 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  5. 2026-10-08 16:40 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  6. 2026-10-07 23:45 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  7. 2026-10-06 15:14 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  8. 2026-10-05 17:40 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  9. 2026-10-04 23:19 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  10. 2026-10-03 14:22 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  11. 2026-09-30 15:52 UTCEG score recompute
  12. 2026-09-30 15:00 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  13. 2026-09-29 15:15 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  14. 2026-09-28 13:48 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  15. 2026-09-27 13:41 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  16. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  17. 2026-09-24 14:00 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  18. 2026-09-23 13:45 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  19. 2026-09-20 20:13 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  20. 2026-09-17 19:23 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  22. 2026-09-15 03:06 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  23. 2026-09-13 16:43 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  24. 2026-09-12 14:57 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  25. 2026-09-11 14:49 UTCEPSS rescoreEPSS 1.0% · 61st percentile
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  1. 2026-09-11 09:33 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  2. 2026-09-08 21:57 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  3. 2026-09-07 15:58 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  4. 2026-09-06 13:45 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  5. 2026-09-05 15:25 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  6. 2026-09-04 13:57 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  7. 2026-09-04 05:04 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  8. 2026-09-02 14:09 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  9. 2026-09-01 13:51 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  10. 2026-08-30 19:14 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  11. 2026-08-30 01:19 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  12. 2026-08-28 21:38 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  13. 2026-08-27 14:22 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  14. 2026-08-26 14:43 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  15. 2026-08-25 13:46 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  16. 2026-08-24 14:13 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  17. 2026-08-21 23:46 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  18. 2026-08-20 22:52 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  19. 2026-08-19 17:01 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  20. 2026-08-18 13:45 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  21. 2026-08-17 13:44 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  22. 2026-08-16 14:53 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  23. 2026-08-16 02:11 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  24. 2026-08-15 01:27 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  25. 2026-08-13 21:57 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  26. 2026-08-12 13:48 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  27. 2026-08-09 13:44 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  28. 2026-08-08 16:34 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  29. 2026-08-07 16:24 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  30. 2026-08-06 13:44 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  31. 2026-08-05 19:15 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  32. 2026-08-04 10:34 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  33. 2026-08-03 10:33 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  34. 2026-08-02 02:24 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  35. 2026-08-01 04:13 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  36. 2026-07-30 16:25 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  37. 2026-07-30 01:28 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  38. 2026-07-28 15:33 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  39. 2026-07-26 14:52 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  40. 2026-07-25 14:15 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  41. 2026-07-24 14:15 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  42. 2026-07-23 14:16 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  43. 2026-07-23 02:09 UTCEG score recompute
  44. 2026-07-22 22:56 UTCEG score recompute
  45. 2026-07-22 14:06 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  46. 2026-07-21 15:22 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  47. 2026-07-20 17:05 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  48. 2026-07-19 14:29 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  49. 2026-07-19 02:27 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  50. 2026-07-18 10:02 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  51. 2026-07-16 17:00 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  52. 2026-07-15 16:56 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  53. 2026-07-15 01:58 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  54. 2026-07-13 22:27 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  55. 2026-07-13 06:11 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  56. 2026-07-12 05:44 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  57. 2026-07-11 08:25 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  58. 2026-07-09 19:07 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  59. 2026-07-08 15:12 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  60. 2026-07-07 13:44 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  61. 2026-07-06 16:25 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  62. 2026-07-06 02:21 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  63. 2026-07-05 02:28 UTCEPSS rescoreEPSS 1.0% · 57th percentile
  64. 2026-07-04 06:29 UTCEPSS rescoreEPSS 1.0% · 57th percentile

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Frequently asked(5)

What is CVE-2022-26770?
CVE-2022-26770 is a high-severity vulnerability; its CVE record was published on May 26, 2022. An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in Security Update 2022-004 Catalina, macOS Monterey 12.4, macOS Big Sur 11.6.6. A malicious application may be able to execute arbitrary code with kernel privileges.
When was the CVE record for CVE-2022-26770 published?
The CVE record for CVE-2022-26770 was published on May 26, 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 May 30, 2025; the record at its source may have been updated since.
Is CVE-2022-26770 actively exploited?
CVE-2022-26770 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-26770?
CVE-2022-26770 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-26770?
The CVE record for CVE-2022-26770 names the fix: "This issue is fixed in Security Update 2022-004 Catalina, macOS Monterey 12.4, macOS Big Sur 11.6.6."

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