CVE-2026-84603

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreHIGH confidence

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

Score 5.5 from GitHub Security Advisory published 2026-09-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 27 and iPadOS 27, visionOS 27, watchOS 27. An app may be able to access sensitive user data.

CVSS v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.1% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
0.1%
EPSS %ILE
3rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

September 14, 2026

Last Modified

September 17, 2026

Advisory Details (3)

Auto-updated Sep 17, 2026
Fix named in the CVE record.
Web page

About the security content of visionOS 27 - Apple Support

https://support.apple.com/en-us/149038
Web page

About the security content of watchOS 27 - Apple Support

https://support.apple.com/en-us/149037
Web page

About the security content of iOS 27 and iPadOS 27 - Apple Support

https://support.apple.com/en-us/149034

Vendor Advisories for CVE-2026-84603(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 81× 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.

  1. 2026-10-11 19:18 UTCEG score recompute
  2. 2026-10-11 16:43 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  3. 2026-10-11 16:34 UTCEG score recompute
  4. 2026-10-11 13:52 UTCEG score recompute
  5. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-10 18:43 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  8. 2026-10-09 20:45 UTCEG score recompute
  9. 2026-10-09 20:45 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-08 22:49 UTCEG score recompute
  12. 2026-10-08 22:48 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  13. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-07 21:01 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  16. 2026-10-06 22:28 UTCEG score recompute
  17. 2026-10-06 22:28 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-06 00:31 UTCEG score recompute
  20. 2026-10-06 00:31 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-10-05 02:33 UTCEG score recompute
  23. 2026-10-05 02:33 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-10-04 04:36 UTCEG score recompute
Show 56 more
  1. 2026-10-04 04:36 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  2. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-03 06:40 UTCEG score recompute
  4. 2026-10-03 06:40 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  5. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-02 08:42 UTCEG score recompute
  7. 2026-10-02 08:42 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  8. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-01 10:45 UTCEG score recompute
  10. 2026-10-01 10:45 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  11. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-09-30 12:49 UTCEG score recompute
  13. 2026-09-30 12:49 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  14. 2026-09-29 14:50 UTCEG score recompute
  15. 2026-09-29 14:50 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  16. 2026-09-28 16:45 UTCEG score recompute
  17. 2026-09-28 16:45 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  18. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-09-27 18:34 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  20. 2026-09-26 20:37 UTCEG score recompute
  21. 2026-09-26 20:37 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-25 22:40 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  24. 2026-09-25 00:01 UTCEG score recompute
  25. 2026-09-25 00:01 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  26. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  27. 2026-09-24 01:58 UTCEG score recompute
  28. 2026-09-24 01:58 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  29. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-09-23 04:02 UTCEG score recompute
  31. 2026-09-23 04:02 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  32. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  33. 2026-09-22 06:05 UTCEG score recompute
  34. 2026-09-22 06:04 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  35. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-09-21 08:07 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  37. 2026-09-20 10:10 UTCEG score recompute
  38. 2026-09-20 10:10 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  39. 2026-09-19 12:13 UTCEG score recompute
  40. 2026-09-19 12:13 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  41. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-09-18 14:16 UTCEG score recompute
  43. 2026-09-18 14:16 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  44. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-09-17 16:03 UTCEG score recompute
  46. 2026-09-17 16:03 UTCGHSA enrichmentGHSA-44c6-x779-mqcc · GitHub CVSS 5.5
  47. 2026-09-17 15:29 UTCGHSA enrichmentGHSA-44c6-x779-mqcc
  48. 2026-09-17 14:59 UTCEG score recomputeFirst assessed: 5.5 MEDIUM
  49. 2026-09-17 14:59 UTCGHSA enrichmentGHSA-44c6-x779-mqcc
  50. 2026-09-17 14:59 UTCMITRE cvelistV5CVSS v3 → 5.5 · severity → MEDIUM
  51. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-09-15 14:57 UTCGHSA enrichmentGHSA-44c6-x779-mqcc
  54. 2026-09-14 21:22 UTCNVD update
  55. 2026-09-14 20:58 UTCEG score recompute
  56. 2026-09-14 20:54 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-84603?
CVE-2026-84603 is a medium-severity vulnerability; its CVE record was published on September 14, 2026. A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 27 and iPadOS 27, visionOS 27, watchOS 27. An app may be able to access sensitive user data.
When was the CVE record for CVE-2026-84603 published?
The CVE record for CVE-2026-84603 was published on September 14, 2026. 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 September 17, 2026; the record at its source may have been updated since.
Is CVE-2026-84603 actively exploited?
CVE-2026-84603 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-84603?
CVE-2026-84603 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-84603?
The CVE record for CVE-2026-84603 names the fix: "This issue is fixed in iOS 27 and iPadOS 27, visionOS 27, watchOS 27." The vendor advisories EchelonGraph has for CVE-2026-84603 are linked in the Vendor Advisories panel on this page.

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