CVE-2025-31209

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS Sequoia 15.5, macOS Sonoma 14.7.6, macOS Ventura 13.7.6, tvOS 18.5, visionOS 2.5, watchOS 11.5. Parsing a file may lead to disclosure of user information.

Published: 2025-05-12 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-31209 is rated Moderate Risk (48.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.53%). Mandatory action: 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-2025-31209

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 2026-03-08 0.15% 0.53% +0.37%
2 2026-01-26 0.10% 0.15% +0.06%
3 2025-11-21 0.10%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-31209

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
2.8 3.4 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-31209

Affected software / configurations for CVE-2025-31209

Vendor Product Version Raw CPE
apple ipados < 17.7.7 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple ipados >= 18.0, < 18.5 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 18.5 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos < 13.7.6 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos >= 14.0, < 14.7.6 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos >= 15.0, < 15.5 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 18.5 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 2.5 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 11.5 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2025-31209

URL Tags
https://support.apple.com/en-us/122404 Release Notes Vendor Advisory
https://support.apple.com/en-us/122405 Release Notes Vendor Advisory
https://support.apple.com/en-us/122716 Release Notes Vendor Advisory
https://support.apple.com/en-us/122717 Release Notes Vendor Advisory
https://support.apple.com/en-us/122718 Release Notes Vendor Advisory
https://support.apple.com/en-us/122720 Release Notes Vendor Advisory
https://support.apple.com/en-us/122721 Release Notes Vendor Advisory
https://support.apple.com/en-us/122722 Release Notes Vendor Advisory
http://seclists.org/fulldisclosure/2025/May/10
http://seclists.org/fulldisclosure/2025/May/12
http://seclists.org/fulldisclosure/2025/May/5
http://seclists.org/fulldisclosure/2025/May/6
http://seclists.org/fulldisclosure/2025/May/8
http://seclists.org/fulldisclosure/2025/May/9
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