Description
A NULL pointer dereference in libcoap v4.3.5-rc2 and below allows a remote attacker to cause a denial of service via the coap_handle_request_put_block function in src/coap_block.c.
References (1)
Core 1
Core References
Issue Tracking
https://github.com/obgm/libcoap/issues/1509
Scores
CVSS v3
7.5
EPSS
0.0065
EPSS Percentile
70.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-120
Status
published
Published
Oct 09, 2024
Tracked Since
Feb 18, 2026