Description
A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.
Affected products
libcoap: libcoap
References2
- github.com/obgm/libcoap/pull/1730 Issue TrackingPatch
- github.com/obgm/libcoap/releases/tag/v4.3.5a Release Notes
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L - EPSS — exploit probability
- 0% percentile: 21 · as of 11 November 2026
- CWE
- CWE-125
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