CVE-2026-9267_CVE-2026-9267

6.9 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

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.

Basic Information

ID CVE-2026-9267

Source eclipse

Published Jun 29, 2026 at 08:10

Affected Product

Vendor Eclipse Foundation

Product Eclipse tinydtls

Affected Versions Eclipse Foundation Eclipse tinydtls 0

CWE Classification

CWE-125

References

gitlab.eclipse.org /security/cve-assignment/-/work_items/112

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    "published": "2026-06-29T08:10:52.567Z",
    "modified": "2026-06-29T08:10:52.567Z",
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