Out-of-bounds write in libmdnie.so prior to SMR Sep-2026 Release 1 allows local attackers to execute arbitrary code with system server privilege. (CVE-2026-21087)
An out-of-bounds write vulnerability exists in libmdnie.so prior to SMR Sep-2026 Release 1. This flaw allows local attackers to execute arbitrary code with system server privileges. The vulnerability is classified as high severity. No patch or remediation information is currently provided. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
CVE-2026-21087 is an out-of-bounds write vulnerability in the libmdnie.so component affecting versions prior to SMR Sep-2026 Release 1. This vulnerability enables local attackers to execute arbitrary code with elevated system server privileges. The vulnerability has been assigned a high severity rating. No official patch or fix details have been disclosed yet, and no known exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability allows a local attacker to execute arbitrary code with system server privileges, potentially leading to full system compromise or unauthorized control over system services.
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 libmdnie.so.
Out-of-bounds write in libmdnie.so prior to SMR Sep-2026 Release 1 allows local attackers to execute arbitrary code with system server privilege. (CVE-2026-21087)
Description
An out-of-bounds write vulnerability exists in libmdnie.so prior to SMR Sep-2026 Release 1. This flaw allows local attackers to execute arbitrary code with system server privileges. The vulnerability is classified as high severity. No patch or remediation information is currently provided. There are no known exploits in the wild at this time.
CVSS v4.0
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-21087 is an out-of-bounds write vulnerability in the libmdnie.so component affecting versions prior to SMR Sep-2026 Release 1. This vulnerability enables local attackers to execute arbitrary code with elevated system server privileges. The vulnerability has been assigned a high severity rating. No official patch or fix details have been disclosed yet, and no known exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability allows a local attacker to execute arbitrary code with system server privileges, potentially leading to full system compromise or unauthorized control over system services.
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 libmdnie.so.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-76j3-93c5-24hp
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-21087"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6aa15f7cacd9273b4961839e
Added to database: 09/09/2026, 13:30:36 UTC
Last enriched: 09/09/2026, 13:58:24 UTC
Last updated: 09/10/2026, 01:52:00 UTC
Views: 3
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