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Known Exploited Vulnerability
9.8
CRITICAL CVSS 3.1
CVE-2025-21042
Samsung Mobile Devices Out-of-Bounds Write Vulnerability - [Actively Exploited]
Description

Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.

INFO

Published Date :

Sept. 12, 2025, 8:15 a.m.

Last Modified :

Nov. 11, 2025, 2 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
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.

Description :

Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so. This vulnerability could allow remote attackers to execute arbitrary code.

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.

Notes :

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21042

Affected Products

The following products are affected by CVE-2025-21042 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 Action
1 Samsung android
: Total Affected Vendor : 1 | Products : 1
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 3af57064-a867-422c-b2ad-40307b65c458
CVSS 3.1 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
Apply the security patch to fix the out-of-bounds write vulnerability.
  • Apply security updates for libimagecodec.quram.so.
  • Update to SMR Apr-2025 Release 1 or later.
Public PoC/Exploit Available at Github

CVE-2025-21042 has a 3 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-2025-21042.

URL Resource
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 Vendor Advisory
https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-21042 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-2025-21042 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).

Profile Photo
B1ack4sh/Blackash-CVE-2025-21042

CVE-2025-21042

Updated: 2 days, 20 hours ago
0 stars 0 fork 0 watcher
Born at : Nov. 8, 2025, 9:04 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
usjnx72726w/CVE-2025-21042

Exploit for out-of-bounds write in libimagecodec.quram.so (CVE-2025-21042)

Updated: 1 day, 20 hours ago
0 stars 0 fork 0 watcher
Born at : Nov. 8, 2025, 8:32 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 1 day, 9 hours ago
7372 stars 1215 fork 1215 watcher
Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 826 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-2025-21042 vulnerability anywhere in the article.

  • TheCyberThrone
Samsung Galaxy Zero-Day CVE-2025-21042 Exploited by LANDFALL Spyware

In recent months, a critical zero-day vulnerability identified as CVE-2025-21042 has been actively exploited on Samsung Galaxy devices, posing a significant security risk to users worldwide. This flaw ... Read more

Published Date: Nov 11, 2025 (3 hours, 5 minutes ago)
  • BleepingComputer
CISA orders feds to patch Samsung zero-day used in spyware attacks

CISA ordered U.S. federal agencies today to patch a critical Samsung vulnerability that has been exploited in zero-day attacks to deploy LandFall spyware on devices running WhatsApp. Tracked as CVE-20 ... Read more

Published Date: Nov 10, 2025 (9 hours, 10 minutes ago)
  • Daily CyberSecurity
Zero-Click Samsung Zero-Day (CVE-2025-21042) Delivered LANDFALL Spyware Via Malicious DNG Images

Researchers from Unit 42, the threat intelligence team at Palo Alto Networks, have discovered a previously unknown Android spyware family dubbed LANDFALL, which leveraged a zero-day vulnerability (CVE ... Read more

Published Date: Nov 10, 2025 (1 day, 4 hours ago)
  • CybersecurityNews
Hackers Hijack Samsung Galaxy Phones via 0-Day Exploit Using a Single WhatsApp Image

A sophisticated spyware operation targeting Samsung Galaxy devices, dubbed LANDFALL, which exploited a zero-day vulnerability to infiltrate phones through seemingly innocuous images shared on WhatsApp ... Read more

Published Date: Nov 08, 2025 (2 days, 21 hours ago)
  • The Register
Previously unknown Landfall spyware used in 0-day attacks on Samsung phones

A previously unknown Android spyware family called LANDFALL exploited a zero-day in Samsung Galaxy devices for nearly a year, installing surveillance code capable of recording calls, tracking location ... Read more

Published Date: Nov 07, 2025 (3 days, 7 hours ago)
  • BleepingComputer
New LandFall spyware exploited Samsung zero-day via WhatsApp messages

A threat actor exploited a zero-day vulnerability in Samsung’s Android image processing library to deploy a previously unknown spyware called 'LandFall' using malicious images sent over WhatsApp. The ... Read more

Published Date: Nov 07, 2025 (3 days, 10 hours ago)
  • The Hacker News
Samsung Zero-Click Flaw Exploited to Deploy LANDFALL Android Spyware via WhatsApp

Nov 07, 2025Ravie LakshmananMobile Security / Vulnerability A now-patched security flaw in Samsung Galaxy Android devices was exploited as a zero-day to deliver a "commercial-grade" Android spyware ... Read more

Published Date: Nov 07, 2025 (3 days, 11 hours ago)
  • security.nl
Samsung Galaxy-telefoons via kritiek lek geïnfecteerd met Android-spyware

Aanvallers hebben een kritieke kwetsbaarheid gebruikt om Samsung Galaxy-telefoons op afstand met Android-spyware te infecteren. Misbruik vond geruime tijd plaats voordat een beveiligingsupdate beschik ... Read more

Published Date: Nov 07, 2025 (3 days, 15 hours 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-2025-21042 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 CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Nov. 11, 2025

    Action Type Old Value New Value
    Added Date Added 2025-11-10
    Added Due Date 2025-12-01
    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 Samsung Mobile Devices Out-of-Bounds Write Vulnerability
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 10, 2025

    Action Type Old Value New Value
    Added Reference https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042
  • Initial Analysis by [email protected]

    Sep. 19, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:o:samsung:android:13.0:smr-apr-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-aug-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-dec-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-dec-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-feb-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:-:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jan-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jul-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jun-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-mar-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-may-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-nov-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-nov-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-oct-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-oct-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-sep-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-apr-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-feb-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jan-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-mar-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2023-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-apr-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-aug-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-aug-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-dec-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-dec-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-feb-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-feb-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jan-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jan-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jul-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jul-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jun-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-jun-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-mar-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-may-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-may-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-may-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-nov-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-nov-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-oct-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-sep-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:13.0:smr-sep-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-feb-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jan-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jul-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-jun-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-mar-2025-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-may-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2021-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-nov-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-oct-2024-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:14.0:smr-sep-2022-r1:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:-:*:*:*:*:*:* *cpe:2.3:o:samsung:android:15.0:smr-mar-2025-r1:*:*:*:*:*:*
    Added Reference Type Samsung Mobile: https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 Types: Vendor Advisory
  • New CVE Received by [email protected]

    Sep. 12, 2025

    Action Type Old Value New Value
    Added Description Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added Reference https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact