CVE-2024-27840

The issue was addressed with improved memory handling. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Monterey 12.7.5, macOS Ventura 13.6.7, tvOS 17.5, visionOS 1.2, watchOS 10.5. An attacker that has already achieved kernel code execution may be able to bypass kernel memory protections.

Published: 2024-06-10 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-27840 is rated Low Risk (31.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.25%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-27840

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.25% +0.24%
2 2025-11-21 0.11% 0.01% -0.09%
3 2025-11-18 — 0.11% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-27840

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 4.0 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 6.0 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-27840

Affected software / configurations for CVE-2024-27840

Vendor Product Version Raw CPE
apple ipados < 16.7.8 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados >= 17.0, < 17.5 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 16.7.8 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os >= 17.0, < 17.5 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 12.0, < 12.7.5 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos >= 13.0, < 13.6.7 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 17.5 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 1.2 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 10.5 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2024-27840

URL Tags
https://support.apple.com/en-us/120898
https://support.apple.com/en-us/120899
https://support.apple.com/en-us/120900
https://support.apple.com/en-us/120901
https://support.apple.com/en-us/120902
https://support.apple.com/en-us/120905
https://support.apple.com/en-us/120906
http://seclists.org/fulldisclosure/2024/Jun/5 Mailing List Third Party Advisory
https://support.apple.com/en-us/HT214100 Vendor Advisory
https://support.apple.com/en-us/HT214101 Vendor Advisory
https://support.apple.com/en-us/HT214102 Vendor Advisory
https://support.apple.com/en-us/HT214104 Vendor Advisory
https://support.apple.com/en-us/HT214105 Vendor Advisory
https://support.apple.com/en-us/HT214107 Vendor Advisory
https://support.apple.com/en-us/HT214108 Vendor Advisory
https://support.apple.com/kb/HT214100 Vendor Advisory
https://support.apple.com/kb/HT214101 Vendor Advisory
https://support.apple.com/kb/HT214102 Vendor Advisory
https://support.apple.com/kb/HT214104 Vendor Advisory
https://support.apple.com/kb/HT214105 Vendor Advisory
https://support.apple.com/kb/HT214107 Vendor Advisory
https://support.apple.com/kb/HT214108 Vendor Advisory
cvelogic Threat Intelligence