🛡️ CVE-2026-41516 — op-tee

🟢 CVSS 2.5 — Low ⚠️ Exploit Public CWE-208 NVD
2.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software

CVE-2026-41516 is recorded against 1 package.

  • op-tee (from 4.5.0 up to 4.10.0)

Timeline and source

Published on 6 July 2026 and last revised on 7 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com

Details

Severity LOW
CVSS Score 2.5
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE CWE-208
Public Exploit ⚠️ Yes
Source NVD
Published 2026-07-06
Updated 2026-08-11
Modified 2026-07-07

Affected Packages

Software From version Fixed in
op-tee 4.5.0 4.10.0

References

Exploit Protection

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CVE-2026-41516 carries CVSS 2.5 Low rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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