CVE-2026-21009
Improper check for exceptional conditions in Recents prior to SMR Apr-2026 Release 1 allows physical attacker to bypass App Pinning.
- Published
- Apr 13, 2026
- Updated
- Apr 13, 2026
- Assigning CNA
- SamsungMobile
- Evidence observed
- Aug 14, 2026
Primary CVSS
nvd · CVSS 4.0
CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XLow · next 30 days
- Percentile
- 13.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Improper check for exceptional conditions in Recents prior to SMR Apr-2026 Release 1 allows physical attacker to bypass App Pinning.
Sources
1Educational Python simulation demonstrating ECDSA nonce reuse in IoT firmware signing, showing how an attacker can recover private keys from two signatures sharing the same k.
Responsible use
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