VulnerabilityAnalyzed
CVE-2026-21068
Stack-based buffer overflow in libril_sem.so prior to SMR Aug-2026 Release 1 allows privileged local attackers to execute arbitrary code.
HIGH 8.4EPSS 0.13%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Stack-based buffer overflow in libril_sem.so prior to SMR Aug-2026 Release 1 allows privileged local attackers to execute arbitrary code.
- CVSS 4.0
- 8.4 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121
- Affected
- samsung/android
- Source
- mobile.security@samsung.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.