CVE-2026-65400

At a glance

Severity: CRITICAL 9.8
Exploitation: Known exploited (CISA KEV) · added 2026-08-18
Exploited per ENISA since 2026-08-18
EPSS: EPSS 1.72 % · percentile 77 (2026-10-27)
State: PUBLISHED
Published: 2026-08-06
Updated: 2026-10-26
Assigner: apple
NVD status: Analyzed

Description

An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-287

European references

ENISA EUVD · EUVD-2026-54216
GCVE · GCVE-0-2026-65400

CERT-FR advisories

CERTFR-2026-AVI-1172 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
CERTFR-2026-AVI-0980 — Vulnérabilité dans Apple macOS · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* ≥ 14.0 < 14.8.9
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* ≥ 15.0 < 15.7.9
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* ≥ 26.0 < 26.6.1

Affected products

Product	Versions
Apple · macOS	affected 0 < 14.8.9 ; affected 0 < 15.7.9 ; affected 0 < 26.6.1 ; affected 0 < 26.7 ; affected 0 < 27

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
CISA Known Exploited Vulnerabilities	CC0 1.0
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD