VulnerabilityPublished 21 Feb 2024Updated 4 Nov 2025

CVE-2023-42839: Apple tvOS · An app may be able to access sensitive user data

Affects Apple tvOSSource CVE Database V5

Not known to be exploited · CVSS 6.2 Medium : upgrade to 17.1 when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

6.2Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 17.1

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

Attack Vector: Local
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: 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: 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 21 Feb 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

Upgrade Apple tvOS to 17.1.

Affected software

Product	Affected	Fixed in
Apple tvOS	Affected <17.1	Fixed in 17.1

AI-suggested

European organizations should prioritize updating all affected Apple devices to the patched OS versions: tvOS 17.1, watchOS 10.1, macOS Sonoma 14.1, iOS 17.1, and iPadOS 17.1. Beyond patching, organizations should enforce strict app installation policies on Apple TV and other Apple devices, limiting installations to trusted sources and vetted applications. Implement Mobile Device Management (MDM) solutions to control app deployment and monitor device compliance. Regularly audit installed applications for unauthorized or suspicious software. Educate users and administrators about the risks of installing untrusted apps on Apple devices. For environments using Apple TV for corporate purposes, consider network segmentation to isolate these devices from sensitive data networks. Monitor device logs for unusual access patterns that could indicate exploitation attempts. Finally, maintain an up-to-date inventory of Apple devices and their OS versions to ensure timely patch management.

Description

This issue was addressed with improved state management. This issue is fixed in tvOS 17.1, watchOS 10.1, macOS Sonoma 14.1, iOS 17.1 and iPadOS 17.1. An app may be able to access sensitive user data.

Impact

For European organizations, the primary impact of CVE-2023-42839 is the potential unauthorized disclosure of sensitive user data on Apple devices, particularly those running tvOS in corporate or media environments. Confidentiality breaches could expose personal or corporate information, leading to privacy violations, regulatory non-compliance (e.g., GDPR), and reputational damage. Since the vulnerability does not affect integrity or availability, operational disruption is unlikely. However, organizations relying on Apple TV devices for presentations, digital signage, or media streaming could see sensitive information exposed if untrusted or malicious apps are installed. The lack of required privileges or user interaction lowers the barrier for exploitation, increasing risk in environments where app installation is less controlled. Given the widespread use of Apple products in Europe, especially in sectors like media, education, and enterprise, the vulnerability poses a moderate risk to confidentiality and privacy.

CWE-922Insecure Storage of Sensitive Information (opens in a new tab)
Class weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product stores sensitive information without properly limiting read or write access by unauthorized actors.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.1.6 (opens in a new tab)
V8.2.3 (opens in a new tab)
V8.2.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Nov 2025, 20:15 UTC

WeaknessesCWE-922

Technical details

References

Community reviews

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