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01 Record

CVE-2026-64758

The issue was addressed with improved bounds checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS

HighPUBLISHEDCNA: apple
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
View raw JSON

02 Description

The issue was addressed with improved bounds checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.17% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 6.4% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-20.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-07-27 20:12Z3 MO AGO
Last updated
2026-10-26 20:35Z2 DAYS AGO
Reserved
2026-07-20
Assigning CNA
apple
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.2
Document digest
fc26171559ca4e6417c9f56d0bb0f14ef855af0f79d435a7a4cff7dfb6d4fb6d

05 Affected products

VendorProductVersionsPlatforms
AppleiOS and iPadOS0 to < 26.6, 0 to < 26.7—
ApplemacOS0 to < 15.8, 0 to < 26.6—
AppletvOS0 to < 26.6—
ApplevisionOS0 to < 26.6—
ApplewatchOS0 to < 26.6—

06 References