Vulnerability Description
Eclipse tinydtls before commit b3efd41ad111a4920f599f51ffa4f5e9f1e72221 contains an out-of-bounds read vulnerability in the check_server_certificate() function that allows unauthenticated attackers to trigger reads beyond valid buffer boundaries by crafting a Certificate handshake message with a specific fragment_length value. Attackers can exploit missing buffer length validation before uint24 reads, memcmp, and memcpy operations during DTLS epoch 0 on both client and server paths to cause denial of service on memory-constrained devices.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-9267?
CVE-2026-9267 is a documented vulnerability. Eclipse tinydtls before commit b3efd41ad111a4920f599f51ffa4f5e9f1e72221 contains an out-of-bounds read vulnerability in the check_server_certificate() function that allows unauthenticated attackers to...
How severe is CVE-2026-9267?
CVSS scoring is not yet available for CVE-2026-9267. Check NVD for updates.
Is there a patch for CVE-2026-9267?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.