CVE-2026-28896

HIGH 7.7 ALL-YEARS

Published 2026-07-27 · Last modified 2026-08-21 · apple · NVD: Modified

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An attacker may be able to cause unexpected system termination or read kernel memory.

ELEVATED IMPACT

Severe if exploited (CVSS 7.7), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 8th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

7.7CVSS 3.1 · HIGH · ADP

ConfidentialityHigh
IntegrityNone
AvailabilityHigh

What an attacker needs

⚠Access: Requires local access to the host
✓Privileges: No account or privileges required
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Apple

Products Ios And Ipados Macos Tvos Visionos Watchos

Weakness (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Apple	Macos	≥ 14.0 and < 14.8.8
Apple	Macos	≥ 15.0 and < 15.7.8

All CVSS metrics

HIGH 7.7 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
HIGH 7.7 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References

Advisories

https://support.apple.com/en-us/128071 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://support.apple.com/en-us/128072 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-49541 ADVISORYEUVD · EUVD-2026-49541

Technical & other

https://support.apple.com/en-us/126792CVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://support.apple.com/en-us/126794CVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://support.apple.com/en-us/126797CVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://support.apple.com/en-us/126798CVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147
https://support.apple.com/en-us/126799CVE record · apple · Updated 2026-08-21T00:38:57.476Z
NVD · CVE-2026-28896 · Updated 2026-10-24T13:10:00.147

Sources: NVD · CVE.org · All sources and attribution · EPSS