High severity · published Nov 5, 2025
CVE-2023-43000
Apple Multiple products Use-After-Free Vulnerability
In wildKEV
8.8
CVSS
4%
EPSS
Yes
On KEV
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.0% · higher than 91% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 5, 2026
Federal remediation dueMar 26, 2026
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 13.5 · source: vendor, NVD
IO
iOS · Apple
before 15.8.7; 16.0 before 16.6 · source: NVD
SA
Safari · Apple
before 16.6 · source: vendor, NVD
IA
iOS and iPadOS · Apple
before 16.6; before 15.8.7 · source: vendor
MP
Multiple Products · Apple
All versions, or not specified · source: KEV
In the news
VulnerabilityCritical
U.S. CISA adds Apple, Rockwell, and Hikvision flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Apple, Rockwell, and Hikvision flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Apple, Rockwell, and Hikvision flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: CVE-2023-43000 is a use-after-free issue in the WebKit component. Apple […]
Mar 6, 2026·Security Affairs
VulnerabilityHigh
CISA Adds Five Known Exploited Vulnerabilities to Catalog
CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation.
CVE-2017-7921 Hikvision Multiple Products Improper Authentication Vulnerability
CVE-2021-22681 Rockwell Multiple Products Insufficient Protected Credentials Vulnerability
CVE-2021-30952 Apple Multiple Products Integer Overflow or Wraparound Vulnerability
CVE-2023-41974 Apple iOS and iPadOS Use-After-Free Vulnerability
CVE-2023-43000 Apple Multiple products Use-After-Free Vulnerability
These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.
Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.
Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that mee...
Mar 5, 2026·CISA Advisories
VulnerabilityHigh
[CISA KEV] CVE-2023-43000: Apple Multiple Products - Apple Multiple products Use-After-Free Vulnerability
Apple macOS, iOS, iPadOS, and Safari 16.6 contain a use-after-free vulnerability due to the processing of maliciously crafted web content that may lead to memory corruption.
MPMultiple ProductsCVE-2023-43000
Mar 5, 2026·CISA KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43000
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-43000
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
support.apple.com
https://support.apple.com/en-us/120331
support.apple.com
https://support.apple.com/en-us/120338
support.apple.com
https://support.apple.com/en-us/120324
support.apple.com
https://support.apple.com/en-us/126632
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