CVE-2026-21115: CWE-787 Out-of-bounds write in Samsung Mobile Samsung Mobile Devices
Description
CVE-2026-21115 is an out-of-bounds write vulnerability in the libcodec2-sec-flacdec.so component of Samsung Mobile Devices. This flaw allows local attackers to write beyond allocated memory boundaries. It affects versions prior to the SMR Oct-2026 Release 1. The vulnerability has a medium severity score of 5.1 and requires local access to exploit. A patch is available to address this issue.
CVSS v4.0
Score 5.1medium
Affected software
Samsung Mobile
Samsung Mobile Devices
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-21115) involves an out-of-bounds write in the libcodec2-sec-flacdec.so library used in Samsung Mobile Devices. The flaw allows local attackers to write outside the intended memory bounds, potentially leading to memory corruption. It affects devices running software versions before the SMR Oct-2026 Release 1. The CVSS 4.0 base score is 5.1, indicating medium severity, with attack vector local, low attack complexity, no privileges required, and no user interaction needed. The vendor has released a patch to fix this vulnerability.
Potential Impact
The vulnerability allows local attackers to perform out-of-bounds memory writes, which can cause memory corruption. This could potentially lead to application crashes or other unintended behavior. No evidence of active exploitation in the wild is reported.
Mitigation Recommendations
A patch is available from Samsung Mobile that fixes this vulnerability in the SMR Oct-2026 Release 1. Users and administrators should apply this official fix to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- SamsungMobile
- Date Reserved
- 2025-12-11T01:33:35.831Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Is Cloud Service
- true
Threat ID: 6acc6a3c2cdf04f656613722
Added to database: 10/12/2026, 05:03:56 UTC
Last enriched: 10/12/2026, 05:33:17 UTC
Last updated: 10/12/2026, 18:57:56 UTC
Views: 18
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.