CVE-2023-30362

7.5 highEPSS 0.8%

High (7.5) in libcoap libcoap. EPSS 0.8% chance of exploitation in the next 30 days.

Buffer Overflow vulnerability in coap_send function in libcoap library 4.3.1-103-g52cfd56 fixed in 4.3.1-120-ge242200 allows attackers to obtain sensitive information via malformed pdu.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2023-06-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libcoap:libcoap

References

https://github.com/obgm/libcoap/issues/1063
https://github.com/obgm/libcoap/pull/1065
https://github.com/obgm/libcoap/issues/1063
https://github.com/obgm/libcoap/pull/1065

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