Samsung Devices libimagecodec.quram.so out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Samsung Devices. This vulnerability affects unknown code of the file libimagecodec.quram.so. Such manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2025-21042. The attack may be launched remotely. Furthermore, there is an exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Samsung Devices (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality of the file libimagecodec.quram.so. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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

The advisory is shared for download at security.samsungmobile.com. This vulnerability is handled as CVE-2025-21042 since 11/06/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a exploit are known.

It is declared as attacked. This issue was added on 11/10/2025 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 12/01/2025:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at Zero-Day.cz (1045) and EUVD (EUVD-2025-29029). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 9.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 8.8
CNA Vector (SamsungMobile): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Attacked

EPSS Score: 🔒
EPSS Percentile: 🔒

KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Zero-Day.cz: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/06/2024 CVE reserved
09/12/2025 +309 days Advisory disclosed
09/12/2025 +0 days VulDB entry created
03/22/2026 +191 days VulDB entry last update

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2025-21042 (🔒)
GCVE (CVE): GCVE-0-2025-21042
GCVE (VulDB): GCVE-100-323744
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/12/2025 10:11
Updated: 03/22/2026 17:28
Changes: 09/12/2025 10:11 (62), 09/12/2025 14:08 (1), 11/10/2025 20:08 (13), 11/11/2025 02:05 (11), 03/22/2026 17:28 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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