CVE-2024-27856

The issue was addressed with improved checks. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2, watchOS 10.5. Processing a file may lead to unexpected app termination or arbitrary code execution.

Published: 2025-01-15 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-27856 is rated Moderate Risk (47.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.63%). Review affected assets and schedule remediation.

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-2024-27856

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 0.03% 0.63% +0.60%
2 2026-02-23 0.06% 0.03% -0.04%
3 2025-11-21 — 0.06% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-27856

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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: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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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.
 1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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: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:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
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.
 1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-27856

OS Trackers for CVE-2024-27856

vendor priority summary link
debian not yet assigned CVE-2024-27856 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 8, open 2. https://security-tracker.debian.org/tracker/CVE-2024-27856
redhat high — https://access.redhat.com/security/cve/CVE-2024-27856
suse high CVE-2024-27856 severity important: SUSE including 96 source package names (WebKitGTK-4.0-lang-2.46.6-150400.4.106.1, WebKitGTK-4.0-lang-2.46.6-150600.12.27.1, …), 386 product×package rows across 31 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 8, … (31 product lines)): Fixed 386. https://www.suse.com/security/cve/CVE-2024-27856/
ubuntu medium CVE-2024-27856 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 33 status rows across 7 suites (bionic, focal, jammy, noble, oracular, upstream, xenial): ignored 15, DNE 10, released 5, needs-triage 3. https://ubuntu.com/security/CVE-2024-27856

Affected software / configurations for CVE-2024-27856

Vendor Product Version Raw CPE
apple safari < 17.5 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
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 < 14.5 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-2024-27856

URL Tags
https://support.apple.com/en-us/120896 Release Notes Vendor Advisory
https://support.apple.com/en-us/120898 Release Notes Vendor Advisory
https://support.apple.com/en-us/120901 Release Notes Vendor Advisory
https://support.apple.com/en-us/120902 Release Notes Vendor Advisory
https://support.apple.com/en-us/120903 Release Notes Vendor Advisory
https://support.apple.com/en-us/120905 Release Notes Vendor Advisory
https://support.apple.com/en-us/120906 Release Notes Vendor Advisory
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