VulnerabilityPublished 15 Sep 2025Updated 2 Apr 2026

CVE-2025-43297: Apple macOS · Type Confusion

Affects Apple macOSSource CVE Database V5

Not known to be exploited · CVSS 6.2 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

6.2Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Apple macOS	Affected =0	Fixed in–

AI-suggested

To mitigate CVE-2025-43297, organizations should prioritize updating all macOS devices to macOS Tahoe 26 or later, where the vulnerability is fixed. Since no public patches were linked, monitoring Apple’s official security advisories and applying updates promptly is critical. Restricting the installation and execution of untrusted or unnecessary local applications can reduce the attack surface. Employing application whitelisting and endpoint protection solutions that monitor for abnormal app behavior may help detect exploitation attempts. Regularly auditing local user permissions and limiting local access to trusted users minimizes the risk of exploitation. For environments where uptime is critical, implementing system monitoring and automated recovery mechanisms can reduce the impact of potential crashes. Additionally, organizations should educate users about the risks of running unverified applications and maintain robust backup and recovery procedures to quickly restore affected systems. Finally, integrating macOS security updates into organizational patch management workflows ensures timely remediation.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26. An app may be able to cause a denial-of-service.

Impact

The primary impact of CVE-2025-43297 is on system availability. A malicious or buggy local application can exploit the type confusion flaw to crash macOS systems, causing denial-of-service conditions. This can disrupt user productivity, critical business operations, and services running on affected macOS devices. Since the vulnerability does not affect confidentiality or integrity, data breaches or unauthorized data modifications are not expected. However, repeated exploitation could lead to significant operational disruptions, especially in environments relying heavily on macOS for critical tasks. The local attack vector limits the scope to users or applications with access to the system, reducing the risk of remote exploitation. Nonetheless, in multi-user or shared environments, or where untrusted applications may be installed, the risk is elevated. Organizations with macOS-based infrastructure, including enterprises, creative industries, and government agencies, may face service interruptions if unpatched. The absence of known exploits in the wild reduces immediate risk but does not eliminate the potential for future attacks.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Apr 2026, 01:54 UTC

WeaknessesCWE-843

Technical details

References

Community reviews

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