Buffer Overflow Affecting armmbed/mbedtls package, versions [3.5.0,3.6.6)
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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Test your applications- Snyk IDSNYK-UNMANAGED-ARMMBEDMBEDTLS-15929046
- published8 Apr 2026
- disclosed1 Apr 2026
- creditHaruto Kimura
Introduced: 1 Apr 2026
CVE-2026-34875 (opens in a new tab)How to fix?
Upgrade armmbed/mbedtls to version 3.6.6 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the FFDH public key export in the psa_export_public_key() function. An attacker can execute arbitrary code or cause a denial of service by sending specially crafted input to the affected process.