CVE-2026-64788

MEDIUM 5.4 ALL-YEARS

Published 2026-08-17 · Last modified 2026-10-20 · apple · NVD: Modified

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 17th percentile

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

Impact if exploited

5.4CVSS 3.1 · MEDIUM · ADP

ConfidentialityLow
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
✓Privileges: No account or privileges required
⚠User interaction: A user must take an action (click / open a file)
✓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

Search GitHub now — results may be empty or unverified.

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 Visionos Watchos Ipados Iphone Os

Weakness (CWE)

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

CVSS vector

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

References and research data (JSON)

Unverified PoC candidates

Catalogue matches for further research. These repositories have not been validated as working exploits.

1 candidate

https://github.com/ByteV0rtex/CVE-2026-64788
CVE-2026-64788 PoC — IOGPUFamily Use-After-Free (iOS 26.6 / 23G71)
PoC-in-GitHub · CVE-2026-64788
PoC-in-GitHub · CVE-2026-64788 · Updated 2026-09-11T02:01:59Z

Known Affected Software Configurations

Vendor	Product	Version range
Apple	Ipados	< 26.6.1
Apple	Iphone Os	< 26.6.1
Apple	Macos	≥ 26.0 and < 26.6.2

All CVSS metrics

MEDIUM 5.4 v3.1 · ADP Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
MEDIUM 5.4 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References

Advisories

https://support.apple.com/en-us/148281 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-10-20T00:50:13.372Z
NVD · CVE-2026-64788 · Updated 2026-09-14T21:17:16.557
https://support.apple.com/en-us/148282 Release NotesVendor AdvisoryCVE record · apple · Updated 2026-10-20T00:50:13.372Z
NVD · CVE-2026-64788 · Updated 2026-09-14T21:17:16.557
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-60501 ADVISORYEUVD · EUVD-2026-60501

Technical & other

https://support.apple.com/en-us/149037CVE record · apple · Updated 2026-10-20T00:50:13.372Z
NVD · CVE-2026-64788 · Updated 2026-09-14T21:17:16.557
https://support.apple.com/en-us/149038CVE record · apple · Updated 2026-10-20T00:50:13.372Z
NVD · CVE-2026-64788 · Updated 2026-09-14T21:17:16.557

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