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Dismissed
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Permalink CVE-2026-53763
3.8 LOW
  • CVSS version (CVSS): 3.0
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
created 1 month, 3 weeks ago Activity log
  • Created & dismissed (no matching packages found) suggestion 1 month, 3 weeks ago
OP-TEE has AES-GCM 32-bit integer overflow in length counters that breaks authentication guarantee

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.

Affected products

optee_os
  • ==>= 3.0.0, < 4.11.0