CVE-2026-26452

7.5 highEPSS 0.5%

High (7.5). EPSS 0.5% chance of exploitation in the next 30 days.

ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 lcontains a vulnerability in the option parsing logic that causes a segmentation fault when processing COAP messages containing invalid option numbers.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2026-08-27
Modified: 2026-09-01
Record from: the NVD, synced 2026-10-19

References

https://github.com/ipflavors/ccoap
https://github.com/songxpu/bug_report/blob/master/CoAP/ccoap/VULNERABILITY_REPORT4.md
https://github.com/songxpu/bug_report/blob/master/CoAP/ccoap/VULNERABILITY_REPORT4.md

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