CVE-2026-84565

HIGHNVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-14. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted disk image may lead to unexpected app termination.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 17, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

About the security content of macOS Sequoia 15.8 - Apple Support

https://support.apple.com/en-us/149043
generic

About the security content of macOS Tahoe 26.7 - Apple Support

https://support.apple.com/en-us/149042
generic

About the security content of macOS Golden Gate 27 - Apple Support

https://support.apple.com/en-us/149035

Vendor Advisories for CVE-2026-84565(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 26× in last 7d / 43× 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.

  1. 2026-09-25 04:57 UTCGHSA enrichment
  2. 2026-09-24 16:25 UTCEG score recompute
  3. 2026-09-24 16:25 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 03:54 UTCEG score recompute
  6. 2026-09-24 03:54 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 15:21 UTCGHSA enrichment
  9. 2026-09-23 02:46 UTCEG score recompute
  10. 2026-09-23 02:46 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 14:13 UTCGHSA enrichment
  13. 2026-09-22 01:41 UTCEG score recompute
  14. 2026-09-22 01:41 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 13:09 UTCGHSA enrichment
  17. 2026-09-21 00:37 UTCEG score recompute
  18. 2026-09-21 00:37 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 12:04 UTCGHSA enrichment
  21. 2026-09-19 23:29 UTCEG score recompute
  22. 2026-09-19 23:29 UTCGHSA enrichment
  23. 2026-09-19 10:57 UTCGHSA enrichment
  24. 2026-09-18 22:26 UTCEG score recompute
  25. 2026-09-18 22:26 UTCGHSA enrichment
Show 18 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 09:54 UTCGHSA enrichment
  3. 2026-09-17 21:22 UTCGHSA enrichment
  4. 2026-09-17 20:45 UTCEG score recompute
  5. 2026-09-17 20:45 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 15:30 UTCGHSA enrichment
  8. 2026-09-17 02:51 UTCEG score recompute
  9. 2026-09-17 02:51 UTCGHSA enrichment
  10. 2026-09-16 14:16 UTCEG score recompute▲ 7.10
  11. 2026-09-16 14:16 UTCGHSA enrichment
  12. 2026-09-16 14:16 UTCNVD updateCVSS v3 → 7.1 · severity → HIGH
  13. 2026-09-16 14:09 UTCEPSS rescore
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 14:56 UTCGHSA enrichment
  16. 2026-09-14 21:22 UTCNVD update
  17. 2026-09-14 20:57 UTCEG score recompute
  18. 2026-09-14 20:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-84565?
CVE-2026-84565 is a high vulnerability published on September 14, 2026. An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted disk image may lead to unexpected app termination.
When was CVE-2026-84565 disclosed?
CVE-2026-84565 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84565 actively exploited?
CVE-2026-84565 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.8% of all scored CVEs.
What is the CVSS score of CVE-2026-84565?
CVE-2026-84565 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-84565?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84565, 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

Explore the affected products and dependency analysis for CVE-2026-84565

Explore →

Is Your Infrastructure Affected by CVE-2026-84565?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs