CVE-2026-64705

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7. An app may be able to cause unexpected system termination or write kernel memory.

CVSS v3
5.5
EG Score
5.5(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic

About the security content of macOS Sonoma 14.8.7 - Apple Support

https://support.apple.com/en-us/127117
generic

About the security content of macOS Sequoia 15.7.7 - Apple Support

https://support.apple.com/en-us/127116

Vendor Advisories for CVE-2026-64705(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 17× in last 7d / 17× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 21:05 UTCEG score recompute
  3. 2026-08-29 21:05 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 19:24 UTCGHSA enrichment
  6. 2026-08-27 17:20 UTCEG score recompute
  7. 2026-08-27 17:20 UTCGHSA enrichment
  8. 2026-08-26 16:58 UTCGHSA enrichment
  9. 2026-08-26 15:58 UTCEG score recompute
  10. 2026-08-26 15:58 UTCGHSA enrichment
  11. 2026-08-26 14:47 UTCEPSS rescore
  12. 2026-08-26 00:30 UTCEG score recompute▲ 5.50
  13. 2026-08-26 00:30 UTCGHSA enrichment
  14. 2026-08-26 00:29 UTCMITRE cvelistV5CVSS v3 → 5.5 · severity → MEDIUM
  15. 2026-08-25 20:23 UTCNVD update
  16. 2026-08-25 19:35 UTCEG score recompute
  17. 2026-08-25 19:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64705?
CVE-2026-64705 is a medium vulnerability published on August 25, 2026. A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7. An app may be able to cause unexpected system termination or write kernel memory.
When was CVE-2026-64705 disclosed?
CVE-2026-64705 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64705 actively exploited?
CVE-2026-64705 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 98.3% of all scored CVEs.
What is the CVSS score of CVE-2026-64705?
CVE-2026-64705 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-64705?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64705, 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-2026-64705

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