High severity · published Feb 11, 2026
CVE-2026-20652
The issue was addressed with improved memory handling
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A remote attacker may be able to cause a denial-of-service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 26.3 · source: vendor, NVD
IO
iOS · Apple
before 18.7.5; 26.0 before 26.3 · source: NVD
SA
Safari · Apple
before 26.3 · source: vendor, NVD
IA
iOS and iPadOS · Apple
before 18.7.5; before 26.3 · source: vendor
VI
visionOS · Apple
before 26.3 · source: vendor, NVD
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Red Hat
All versions, or not specified · source: CISA
RH
Red Hat Enterprise Linux 8.6 Telecommunications Update Service · Red Hat
All versions, or not specified · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20652
Release Notes
https://support.apple.com/en-us/126346
Release Notes
https://support.apple.com/en-us/126347
Release Notes
https://support.apple.com/en-us/126348
Release Notes
https://support.apple.com/en-us/126353
Release Notes
https://support.apple.com/en-us/126354
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:10702
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