PT-2026-69903
CVE-2026-71969
·
Published
2026-08-10
·
Updated
2026-09-24
Description by
CVSS 4.0
8.4
HighMetricsAV: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions
OP-TEE OS versions prior to 4.10.0 commit 7b8b494
Description
A buffer underwrite issue exists in the RSA NOPAD encrypt and decrypt operations within the mbedTLS software backend and SE050 hardware driver. A malicious Trusted Application can corrupt secure-world heap memory by providing an input length that exceeds the RSA modulus size. Specifically, when the
src len variable exceeds rsa len, the subtraction expression wraps to a large unsigned value, leading a memcpy() function to write attacker-controlled data before the destination buffer in S-EL1 secure-world heap memory.Recommendations
Update OP-TEE OS to the version containing commit 7b8b494.
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