VulnerabilityPublished 28 Oct 2024Updated 2 Apr 2026

CVE-2024-44279: Apple macOS · Out-of-bounds Read

Affects Apple macOSSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium · fixed in 15.1 : update Apple macOS when convenient.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 15.1

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

Attack Vector: Network
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: 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: 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 28 Oct 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-2024-44279, organizations should immediately deploy the security updates released by Apple in macOS Sequoia 15.1, Sonoma 14.7.1, and Ventura 13.7.1. Beyond patching, organizations should implement strict email and file filtering policies to block or quarantine suspicious files that could exploit this vulnerability. Employ endpoint protection solutions capable of detecting anomalous file parsing behaviors. Educate users to avoid opening files from untrusted or unknown sources, emphasizing the risk of social engineering. Use application whitelisting to restrict execution of unauthorized software and sandboxing techniques to isolate file processing activities. Regularly audit and monitor macOS systems for unusual memory access patterns or data exfiltration attempts. For high-risk environments, consider disabling automatic file previews or parsing features in applications that handle untrusted files. Finally, maintain comprehensive backups and incident response plans to quickly address any potential data breaches resulting from exploitation.

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.1, macOS Sonoma 14.7.1, macOS Ventura 13.7.1. Parsing a file may lead to disclosure of user information.

Impact

The primary impact of CVE-2024-44279 is unauthorized disclosure of sensitive user information due to an out-of-bounds read vulnerability in macOS file parsing. For organizations worldwide, this can lead to leakage of confidential data such as credentials, personal information, or proprietary content, potentially facilitating further attacks like phishing, identity theft, or corporate espionage. Since exploitation requires user interaction, social engineering or phishing campaigns could be used to deliver malicious files. The vulnerability does not affect system integrity or availability, so it is less likely to cause direct operational disruption. However, the confidentiality breach can have severe consequences for privacy compliance, intellectual property protection, and overall organizational security posture. Enterprises with macOS endpoints, especially those in sensitive sectors such as government, finance, healthcare, and technology, face heightened risk. The absence of known exploits in the wild provides a window for proactive patching and mitigation before widespread attacks occur.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Apr 2026, 00:08 UTC

WeaknessesCWE-125

Technical details

References

Community reviews

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