Dashboard / CVE-2026-41516

CVE-2026-41516

LOW
INFO Priority: 0.00 BB Relevance: 32/100
Published: 2026-07-06 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: Low
I: None
A: None

Description

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 4.5.0 and prior to version 4.11.0, the RSA PKCS#1 v1.5 decryption implementation in the Hisilicon HPRE crypto driver uses non-constant-time `memcmp()` for label hash verification and has multiple distinguishable error paths. This creates a Bleichenbacher-style padding oracle that allows an attacker to recover RSA PKCS#1 v1.5 plaintext. Version 4.11.0 contains a patch. As a workaround, disable Hisilicon HPRE RSA driver with `CFG_HISILICON_ACC_V3=n`.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
trustedfirmware op-tee 4.5.0 – 4.10.0

References & Advisories (1)

Bug Bounty Relevance

32 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

3.3 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.14%
Raw Score 0.001380
Percentile 3.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00138
2026-10-28
0.00138

Intelligence Sources

nvd ref →

External Links