Vulnerability · Published Sep 9, 2026 · Assigned by SamsungMobile
CVE-2026-21087
High 8.6
In plain English
A high-severity out-of-bounds write in Samsung Mobile Devices from Samsung Mobile. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)0.2%top 93.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Samsung Mobile | Samsung Mobile Devices | see references |
Weakness: CWE-787 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N