CVE-2026-53763 (GCVE-0-2026-53763)

Vulnerability from cvelistv5 – Published: 2026-07-06 19:35 – Updated: 2026-07-07 14:10
VLAI
Title
OP-TEE has AES-GCM 32-bit integer overflow in length counters that breaks authentication guarantee
Summary
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 3.0.0 and prior to version 4.11.0, 32-bit integer overflows in OP-TEE core's AES-GCM implementation cause the authentication tag to be computed with incorrect bit-length values after processing more than 512 megabytes of payload or Additional Authenticated Data (AAD). Version 4.11.0 contains a patch. No known workarounds are available.
Severity
3.8 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 14:10 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
OP-TEE optee_os Affected: >= 3.0.0, < 4.11.0
Create a notification for this product.
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