VulnerabilityPublished 13 May 2024Updated 2 Apr 2026

CVE-2024-27852: Apple iOS and iPadOS · A maliciously crafted webpage may be able to distribute a script that tracks users on other webpages

Affects Apple iOS and iPadOSSource CVE Database V5

Not known to be exploited · CVSS 5.5 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

5.5Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
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 13 May 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 iOS and iPadOS	Affected =0	Fixed in–

AI-suggested

Apple has released official fixes for this vulnerability in iOS 17.5 and iPadOS 17.5. Users and administrators should apply these updates promptly to mitigate the risk. Since this is a client-side vulnerability fixed by Apple, no additional mitigation steps are required beyond updating to the patched versions.

Description

CVE-2024-27852 is a privacy vulnerability in Apple iOS and iPadOS where a maliciously crafted webpage may distribute a script capable of tracking users across other webpages. This issue relates to client ID handling for alternative app marketplaces and was addressed in iOS 17.5 and iPadOS 17.5. The vulnerability has a medium severity with a CVSS score of 5.5. Apple has released official patches in iOS 17.5 and iPadOS 17.5 to fix this issue. There are no known exploits in the wild at this time.

Impact

A successful exploitation of this vulnerability could allow a malicious webpage to track users across different webpages, compromising user privacy by exposing browsing behavior. The confidentiality of user data is impacted, but there is no indication of integrity or availability compromise. No known active exploits have been reported.

Summary

This vulnerability involves a privacy issue in iOS and iPadOS where a malicious webpage can distribute tracking scripts that monitor user activity on other webpages by exploiting client ID handling mechanisms related to alternative app marketplaces. Apple fixed this issue by improving client ID handling in the security updates released as part of iOS 17.5 and iPadOS 17.5. The CVSS vector indicates the attack requires local access with low complexity, no privileges, and user interaction, resulting in high confidentiality impact but no integrity or availability impact.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 9 Apr 2026, 23:18 UTC

Technical details

References

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