Integer Overflow or Wraparound Affecting op-tee/optee_os package, versions [3.8.0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-OPTEEOPTEEOS-16351560
- published3 May 2026
- disclosed24 Apr 2026
- creditUnknown
Introduced: 24 Apr 2026
CVE-2026-33662 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound through the emsa_pkcs1_v1_5_encode function. An attacker can cause a crash or denial of service by providing a specially crafted small modulus value that triggers an integer underflow during padding calculation. This is only exploitable if the platform registers RSA acceleration.