CVE Watch14 jul 2026

CVE-2026-58465

Eclipse Wakaama before snapshot/2026-05-26 contains an unbounded memory allocation vulnerability in the CoAP Block1 handler within coap/bloc

CVSS

7.5

Alto

EPSS

0.6%

p43

KEV

—

Exploit Today

0-100

Publicado: 2 jul 2026 · Última mod.: 14 jul 2026 · CWE-770

EPSS · 30d

0.6%EPSS · 30 días0.6%

2026-07-032026-07-17

Descripción técnica

Eclipse Wakaama before snapshot/2026-05-26 contains an unbounded memory allocation vulnerability in the CoAP Block1 handler within coap/block.c that allows unauthenticated remote attackers to exhaust server memory by sending a sequence of Block1 PUT requests with incrementing block numbers. Attackers can target the registration endpoint over UDP without authentication, causing the server to repeatedly reallocate a growing accumulation buffer by appending each block payload without enforcing any maximum total size limit, resulting in denial of service through memory exhaustion.

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