CVE-2026-26456

HIGH 7.5

CVSS Score

7.5

EPSS Score

0.2%

EPSS Percentile

7th

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5. The issue is caused by a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes without proper synchronization.

Vendor	n/a
Product	n/a
Published	Aug 27, 2026
Last Updated	Aug 31, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ipflavors/ccoap github.com: https://github.com/songxpu/bug_report/blob/master/CoAP/ccoap/VULNERABILITY_REPORT5.md