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CVE-2026-26457

High

Description

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_dump_msg() function when processing COAP messages containing options with zero length.

SeverityHigh
CVSS7.5
Exploit probability—
ProductCcoap
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-476NULL pointer dereference

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
ccoap77f55c4b466e99327c24ace8a2913d3ba7e2ccd5—

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