VulnerabilityPublished 16 Sep 2024Updated 2 Apr 2026

CVE-2024-40797: Apple macOS · Visiting a malicious website may lead to user interface spoofing

Affects Apple macOSSource CVE Database V5

Not known to be exploited · CVSS 6.1 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

6.1Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

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

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
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: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 16 Sep 2024
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-2024-40797, organizations and users should promptly apply the security updates released by Apple for macOS Sequoia 15, Sonoma 14.7, and Ventura 13.7 or later. Beyond patching, organizations should implement enhanced user awareness training focused on recognizing phishing and spoofed UI elements, as user interaction is required for exploitation. Employing web filtering solutions to block access to known malicious websites can reduce exposure. Additionally, configuring browsers and security tools to display clear and consistent security indicators can help users identify legitimate UI elements. For enterprise environments, deploying endpoint detection and response (EDR) solutions capable of detecting anomalous UI behavior or suspicious web activity may provide early warning of exploitation attempts. Regularly reviewing and updating security policies related to web browsing and user interaction with system prompts will further reduce risk.

Description

This issue was addressed through improved state management. This issue is fixed in macOS Sequoia 15, macOS Sonoma 14.7, macOS Ventura 13.7. Visiting a malicious website may lead to user interface spoofing.

Impact

The primary impact of CVE-2024-40797 is the potential for attackers to deceive users through UI spoofing, which can lead to unauthorized disclosure of sensitive information such as credentials or personal data. This can facilitate phishing attacks, social engineering, and potentially unauthorized actions if users are tricked into interacting with spoofed dialogs or prompts. While the vulnerability does not directly compromise system availability or allow privilege escalation, the integrity and confidentiality of user data are at risk. Organizations relying on macOS devices, especially those with users who frequently access web content, may face increased risk of targeted phishing campaigns exploiting this flaw. The medium severity rating reflects the moderate risk posed by this vulnerability, emphasizing the need for timely patching to prevent exploitation. The absence of known exploits in the wild reduces immediate risk but does not eliminate the threat, as attackers may develop exploits following public disclosure.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Apr 2026, 23:27 UTC

Technical details

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