CVE-2025-55177
Meta Platforms WhatsApp Incorrect Authorization Vulnerability - [Actively Exploited]
Description
Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78 could have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple platforms (CVE-2025-43300), may have been exploited in a sophisticated attack against specific targeted users.
INFO
Published Date :
Aug. 29, 2025, 4:15 p.m.
Last Modified :
Sept. 3, 2025, 2:03 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
https://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177
Affected Products
The following products are affected by CVE-2025-55177
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update WhatsApp for iOS to v2.25.21.73 or later.
- Update WhatsApp Business for iOS to v2.25.21.78 or later.
- Update WhatsApp for Mac to v2.25.21.78 or later.
Public PoC/Exploit Available at Github
CVE-2025-55177 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2025-55177.
| URL | Resource |
|---|---|
| https://www.facebook.com/security/advisories/cve-2025-55177 | Vendor Advisory |
| https://www.whatsapp.com/security/advisories/2025/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-55177 is
associated with the following CWEs:
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-2025-55177
weaknesses.
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).
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-55177 vulnerability anywhere in the article.
-
Daily CyberSecurity
CVE-2025-9242: Critical WatchGuard Flaw Allows Remote Code Execution
WatchGuard has issued a security advisory addressing a critical vulnerability in its Fireware OS, tracked as CVE-2025-9242 with a CVSS v4 score of 9.3. The flaw resides in the iked process and could a ... Read more
-
Daily CyberSecurity
Kubernetes C# Client Flaw Exposes API to MITM Attacks (CVE-2025-9708)
A newly disclosed vulnerability in the Kubernetes C# client has been assigned CVE-2025-9708 with a CVSS score of 6.8 (Medium severity). The flaw stems from improper certificate validation in custom Ce ... Read more
-
Daily CyberSecurity
KSMBDrain (CVE-2025-38501): Linux Kernel Flaw Allows Remote DoS Attacks, PoC Available
A newly disclosed vulnerability in the Linux kernel’s KSMBD subsystem has been assigned CVE-2025-38501, allowing remote attackers to exhaust server resources and cause denial-of-service (DoS) conditio ... Read more
-
Daily CyberSecurity
AISURU Botnet: From Record-Breaking DDoS to Residential Proxy Empire
The AISURU botnet, first disclosed by XLab in 2024, has rapidly become one of the most dangerous forces in the DDoS landscape. In 2025 alone, it was linked to multiple record-breaking attacks, includi ... Read more
-
The Register
Apple 0-day likely used in spy attacks affected devices as old as iPhone 8
Apple backported a fix to older iPhones and iPads for a serious bug it patched last month – but only after it may have been exploited in what the company calls "extremely sophisticated" attacks. The l ... Read more
-
BleepingComputer
Apple backports zero-day patches to older iPhones and iPads
Apple has released security updates to backport patches released last month to older iPhones and iPads, addressing a zero-day bug that was exploited in "extremely sophisticated" attacks. This securit ... Read more
-
The Hacker News
Apple Backports Fix for CVE-2025-43300 Exploited in Sophisticated Spyware Attack
Sep 16, 2025Ravie LakshmananVulnerability / Spyware Apple on Monday backported fixes for a recently patched security flaw that has been actively exploited in the wild. The vulnerability in question ... Read more
-
Daily CyberSecurity
Chrome’s New Preloading is a Game-Changer
Google has long experimented with prerendering technology in Chrome to accelerate page loading by rendering content in advance so that pages would open instantly upon a click. However, this approach o ... Read more
-
Daily CyberSecurity
China Accuses NVIDIA of Anti-Monopoly Violations
China’s State Administration for Market Regulation (SAMR) issued a statement today declaring that NVIDIA’s $6.9 billion acquisition of Mellanox in 2019 violated both the Anti-Monopoly Law of the Peopl ... Read more
-
Daily CyberSecurity
Apple Ends iCloud Support for Older Devices
According to Apple’s newly published support documentation, devices running iOS 10 or macOS 10.12 no longer meet the minimum system requirements for iCloud services. As a result, these systems will lo ... Read more
-
Daily CyberSecurity
CVE-2025-5821: Critical Authentication Bypass in WordPress Case Theme User Plugin Exploited in the Wild
Hackers are exploiting a critical authentication bypass vulnerability in the Case Theme User plugin, a WordPress plugin with an estimated 12,000 active installations. This plugin is bundled in multipl ... Read more
-
Daily CyberSecurity
PoC Published: Linux Kernel 0-Click RCE Vulnerability Found in ksmbd
Image: BitsByWill In a recent deep-dive analysis, security researcher BitsByWill examined two critical Linux kernel vulnerabilities—CVE-2023-52440 and CVE-2023-4130—both impacting ksmbd, the in-kernel ... Read more
-
Daily CyberSecurity
OpenAI’s New Grove Incubator Is Building the Next Generation of AI Startups
OpenAI recently unveiled its internal incubation initiative, OpenAI Grove. Unlike traditional startup accelerators or incubator programs, Grove emphasizes engaging with potential founders before their ... Read more
-
Daily CyberSecurity
Samsung Zero-Day Exploit CVE-2025-21043 Patched After Active Attacks on Android Devices
Samsung has released security updates to patch a critical zero-day vulnerability actively exploited against Android devices. Tracked as CVE-2025-21043 with a CVSS score of 8.8, the flaw enables remote ... Read more
-
Daily CyberSecurity
PoC Available: FlowiseAI Flaw (CVE-2025-58434) Allows Full Account Takeover (CVSS 9.8)
The open-source generative AI development platform FlowiseAI, widely used for building AI agents and LLM workflows, has been found vulnerable to a critical flaw that enables unauthenticated account ta ... Read more
-
Daily CyberSecurity
Digiever NVR Flaws (CVE-2025-10264, CVE-2025-10265) Let Hackers Steal Credentials & Take Control
The Taiwan Computer Emergency Response Team (TWCERT/CC) has issued a vulnerability note warning of two critical security flaws in Digiever’s Network Video Recorder (NVR) product line. Tracked as CVE-2 ... Read more
-
Daily CyberSecurity
CVE-2025-9556 (CVSS 9.8):Critical Vulnerability in LangChainGo Puts LLM Apps at Risk
The rise of large language model (LLM) applications has made frameworks like LangChain and its ports foundational for developers worldwide. But according to a recent CERT/CC Vulnerability Note, a crit ... Read more
-
Daily CyberSecurity
Phishing Wave Hits U.S. Energy Giants: Chevron, ConocoPhillips Targeted
The U.S. energy industry has become a prime target for large-scale phishing operations in 2025, according to new research from Hunt Intelligence. The report reveals a sharp increase in look-alike doma ... Read more
-
Daily CyberSecurity
VMScape (CVE-2025-40300): A New CPU Flaw Threatens Cloud Security
Security researchers at ETH Zurich have published a study revealing how attackers can break through virtualization boundaries with a technique they call VMScope (CVE-2025-40300). By exploiting microar ... Read more
-
Hackread - Latest Cybersecurity, Hacking News, Tech, AI & Crypto
Samsung Fixes Image Parsing Vulnerability Exploited in Android Attacks
Samsung has patched a serious security vulnerability that hackers were already using in live attacks against its Android devices. The issue, tracked as CVE-2025-21043, was first reported in August 202 ... Read more
The following table lists the changes that have been made to the
CVE-2025-55177 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.
-
Initial Analysis by [email protected]
Sep. 03, 2025
Action Type Old Value New Value Added CWE CWE-863 Added CPE Configuration OR *cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* versions from (including) 2.22.25.2 up to (excluding) 2.25.21.73 *cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:macos:*:* versions from (including) 2.22.25.2 up to (excluding) 2.25.21.78 *cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* versions from (including) 2.22.25.2 up to (excluding) 2.25.21.78 Added Reference Type Facebook, Inc.: https://www.facebook.com/security/advisories/cve-2025-55177 Types: Vendor Advisory Added Reference Type Facebook, Inc.: https://www.whatsapp.com/security/advisories/2025/ Types: Vendor Advisory -
CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Sep. 03, 2025
Action Type Old Value New Value Added Date Added 2025-09-02 Added Due Date 2025-09-23 Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Added Vulnerability Name Meta Platforms WhatsApp Incorrect Authorization Vulnerability -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 02, 2025
Action Type Old Value New Value Removed CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H -
CVE Modified by [email protected]
Aug. 30, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Added Reference https://www.facebook.com/security/advisories/cve-2025-55177 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 29, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H -
New CVE Received by [email protected]
Aug. 29, 2025
Action Type Old Value New Value Added Description Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78 could have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple platforms (CVE-2025-43300), may have been exploited in a sophisticated attack against specific targeted users. Added Reference https://www.whatsapp.com/security/advisories/2025/