CVE-2026-21042: CWE-787: Out-of-bounds Write in Samsung Mobile Samsung Mobile Devices
Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-21042) is an out-of-bounds write issue classified under CWE-787 affecting the libsavsac.so library in Samsung Mobile Devices. It allows a local attacker with low privileges to execute arbitrary code due to improper bounds checking. The vulnerability affects versions prior to the SMR Jul-2026 Release 1. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and high impact on confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation can lead to arbitrary code execution by a local attacker with limited privileges, potentially compromising confidentiality and integrity of the affected device. There is no indication of impact on availability or scope change. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local access to trusted users only and monitor for suspicious activity related to libsavsac.so. Avoid executing untrusted code locally.
CVE-2026-21042: CWE-787: Out-of-bounds Write in Samsung Mobile Samsung Mobile Devices
Description
Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.
CVSS v4.0
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-21042) is an out-of-bounds write issue classified under CWE-787 affecting the libsavsac.so library in Samsung Mobile Devices. It allows a local attacker with low privileges to execute arbitrary code due to improper bounds checking. The vulnerability affects versions prior to the SMR Jul-2026 Release 1. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and high impact on confidentiality and integrity. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation can lead to arbitrary code execution by a local attacker with limited privileges, potentially compromising confidentiality and integrity of the affected device. There is no indication of impact on availability or scope change. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local access to trusted users only and monitor for suspicious activity related to libsavsac.so. Avoid executing untrusted code locally.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- SamsungMobile
- Date Reserved
- 2025-12-11T01:33:35.815Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50809568715ace43063769
Added to database: 07/10/2026, 05:18:13 UTC
Last enriched: 07/17/2026, 09:41:27 UTC
Last updated: 08/23/2026, 10:52:07 UTC
Views: 179
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