CVE-2026-26459
High
Description
ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a vulnerability in the option parsing logic that causes a segmentation fault when processing malformed COAP messages with insufficient option data.
SeverityHigh
CVSS7.5
Exploit probability—
ProductCcoap
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ccoap | No range specified | — |
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