CVE-2024-40818VulnerabilityPublished 29 Jul 2024Updated 2 Apr 2026

CVE-2024-40818: Apple iOS and iPadOS · An attacker with physical access may be able to use Siri to access sensitive user data

Affects Apple iOS and iPadOSSource CVE Database V5

Not known to be exploited · CVSS 4.6 Medium · fixed in 16.7.9 : update Apple iOS and iPadOS when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

4.6Medium

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 16.7.9

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

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

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

Attack Vector: Physical: The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief or persistent.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within 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 29 Jul 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 2026-10-26.

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 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 iOS and iPadOS	Affected =0	Fixed in–

AI-suggested

To mitigate CVE-2024-40818, organizations and users should promptly apply the security updates released by Apple: iOS 16.7.9 and iPadOS 16.7.9, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6, Ventura 13.6.8, and watchOS 10.6. Beyond patching, organizations should enforce strict physical security controls to prevent unauthorized access to devices, including secure storage and policies for lost or stolen devices. Disable or limit Siri access on locked devices via device management policies where possible, especially in high-security environments. Educate users about the risks of leaving devices unattended and encourage use of strong passcodes and biometric locks. Consider deploying mobile device management (MDM) solutions to enforce security configurations and monitor device compliance. Regularly audit device settings to ensure Siri and other voice assistant features do not expose sensitive data when locked. Finally, implement incident response plans for lost or stolen devices to quickly revoke access and mitigate data exposure.

Description

This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 16.7.9 and iPadOS 16.7.9, iOS 17.6 and iPadOS 17.6, macOS Sonoma 14.6, macOS Ventura 13.6.8, watchOS 10.6. An attacker with physical access may be able to use Siri to access sensitive user data.

Impact

The primary impact of CVE-2024-40818 is unauthorized disclosure of sensitive user data via Siri on locked Apple devices. This can lead to privacy violations, leakage of personal or corporate information, and potential follow-on attacks if sensitive data such as contacts, messages, or calendar entries are exposed. Since the attack requires physical access, the risk is higher in environments where devices may be lost, stolen, or accessed by unauthorized personnel. For organizations, this vulnerability could result in data breaches, loss of customer trust, and compliance issues if sensitive information is exposed. The lack of integrity or availability impact limits the scope to confidentiality only. However, the ease of exploitation without user interaction or privileges makes it a notable risk. The vulnerability affects a broad range of Apple devices globally, impacting users who rely on Siri and have not applied the security updates. The absence of known exploits in the wild reduces immediate threat but does not eliminate the risk of future exploitation.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Apr 2026, 23:32 UTC

Technical details

References

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