CVE-2025-31277

8.8

HIGH CVSS 3.1

Apple WebKit watchOS Memory Corruption Vulnerability

Overview

Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, watchOS 11.6, visionOS 2.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6. Processing maliciously crafted web content may lead to memory corruption.

Details

INFO

Published Date :

July 30, 2025, 12:15 a.m.

Last Modified :

Nov. 3, 2025, 8:18 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2025-31277 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product
1	Apple	macos
2	Apple	iphone_os
3	Apple	tvos
4	Apple	watchos
5	Apple	safari
6	Apple	ipados
7	Apple	visionos

: Total Affected Vendor : 1 | Products : 7

Scoring

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	HIGH				134c704f-9b21-4f2e-91b3-4a467353bcc0

Solution

Update affected Apple software to versions with improved memory handling.

Update Safari to version 18.6.
Update watchOS to version 11.6.
Update visionOS to version 2.6.
Update iOS to version 18.6.

Public PoC/Exploit Available at Github

CVE-2025-31277 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-31277.

URL	Resource
https://support.apple.com/en-us/124147	Release Notes Vendor Advisory
https://support.apple.com/en-us/124149	Release Notes Vendor Advisory
https://support.apple.com/en-us/124152	Release Notes Vendor Advisory
https://support.apple.com/en-us/124153	Release Notes Vendor Advisory
https://support.apple.com/en-us/124154	Release Notes Vendor Advisory
https://support.apple.com/en-us/124155	Release Notes Vendor Advisory
http://seclists.org/fulldisclosure/2025/Aug/0
http://seclists.org/fulldisclosure/2025/Jul/30
http://seclists.org/fulldisclosure/2025/Jul/32
http://seclists.org/fulldisclosure/2025/Jul/36

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-31277 is associated with the following CWEs:

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-31277 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

0xcrypto/apple-cves

None

Python

Updated: 4 days, 10 hours ago

0 stars 0 fork 0 watcher

Born at : Jan. 26, 2026, 8:17 a.m. This repo has been linked 2857 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-31277 vulnerability anywhere in the article.

The Hacker News

DarkSword iOS Exploit Kit Uses 6 Flaws, 3 Zero-Days for Full Device Takeover

A new exploit kit for Apple iOS devices designed to steal sensitive data from is being wielded by multiple threat actors since at least November 2025, according to reports from Google Threat Intellige ...

Published Date: Mar 19, 2026 (3 hours, 23 minutes ago)

The Cyber Express

Multiple Threat Actors Exploiting a Six-Vulnerability iOS Exploit Kit Dubbed “DarkSword”

It takes a single page load on a compromised Ukrainian government site, no tap, no download, no warning — and an iPhone running iOS 18.4 through 18.6.2 hands over its messages, photos, passwords, Tele ...

Published Date: Mar 19, 2026 (5 hours, 25 minutes ago)

The Register

State snoops and spyware vendors planting info-stealing malware on iPhones, Google warns

A new exploit kit targeting iPhone users and stealing their sensitive data is being abused by "multiple" spyware vendors and suspected nation-state goons, security researchers said on Wednesday. The e ...

Published Date: Mar 18, 2026 (14 hours, 58 minutes ago)

CybersecurityNews

New iOS Exploit With Advanced iPhone Hacking Tools Attacking Users to Steal Personal Data

DarkSword iOS Exploit A sophisticated full-chain iOS exploit kit dubbed DarkSword, actively deployed by multiple commercial surveillance vendors and state-sponsored threat actors since at least Novemb ...

Published Date: Mar 18, 2026 (19 hours, 24 minutes ago)

Google Cloud

The Proliferation of DarkSword: iOS Exploit Chain Adopted by Multiple Threat Actors

Introduction Google Threat Intelligence Group (GTIG) has identified a new iOS full-chain exploit that leveraged multiple zero-day vulnerabilities to fully compromise devices. Based on toolmarks in rec ...

Published Date: Mar 18, 2026 (22 hours, 37 minutes ago)

seclists.org

APPLE-SA-07-30-2025-1 Safari 18.6

Full Disclosure mailing list archives From: Apple Product Security via Fulldisclosure <fulldisclosure () seclists org> Date: Wed, 30 Jul 2025 12:51:16 -0700 -----BEGIN PGP SIGNED MESSAGE----- Hash: SH ...

Published Date: Aug 03, 2025 (7 months, 2 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-31277 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

CVE Modified by af854a3a-2127-422b-91ae-364da2661108

Nov. 03, 2025

Action	Type	New Value
Added	Reference	http://seclists.org/fulldisclosure/2025/Aug/0
Added	Reference	http://seclists.org/fulldisclosure/2025/Jul/30
Added	Reference	http://seclists.org/fulldisclosure/2025/Jul/32
Added	Reference	http://seclists.org/fulldisclosure/2025/Jul/36

Initial Analysis by [email protected]

Jul. 31, 2025

Action	Type	New Value
Added	CPE Configuration	OR cpe:2.3:o:apple:macos::::::::* versions from (including) 15.0 up to (excluding) 15.6 cpe:2.3:o:apple:ipados::::::::* versions up to (excluding) 18.6 cpe:2.3:o:apple:iphone_os::::::::* versions up to (excluding) 18.6 cpe:2.3:o:apple:tvos::::::::* versions up to (excluding) 18.6 cpe:2.3:o:apple:visionos::::::::* versions up to (excluding) 2.6 cpe:2.3:o:apple:watchos::::::::* versions up to (excluding) 11.6 cpe:2.3:a:apple:safari::::::::* versions up to (excluding) 18.6
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124147 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124149 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124152 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124153 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124154 Types: Release Notes, Vendor Advisory
Added	Reference Type	Apple Inc.: https://support.apple.com/en-us/124155 Types: Release Notes, Vendor Advisory

CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0