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Vulnerability record · CVE-2024-0962 · published 27 January 2024

CVE-2024-0962: Libcoap stack-based buffer overflow vulnerability

Libcoap · Libcoap

A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical. Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler. The manipulation leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-252206 is the identifier assigned to this vulnerability.

7.8 CVSS 3.1 High EPSS 0.76% · top 46.6% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score, v2 7.5
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in obgm libcoap 4.3.4. It has been rated as critical. Affected by this issue is the function get_split_entry of the file src/coap_oscore.c of the component Configuration File Handler. The manipulation leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. VDB-252206 is the identifier assigned to this vulnerability.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/obgm/libcoap/issues/1310 ExploitPatch
https://github.com/obgm/libcoap/issues/1310#issue-2099860835 ExploitIssue Tracking
https://github.com/obgm/libcoap/pull/1311 Issue TrackingPatch
https://vuldb.com/?ctiid.252206 Permissions Required
https://vuldb.com/?id.252206 Third Party Advisory
https://github.com/obgm/libcoap/issues/1310 ExploitPatch
https://github.com/obgm/libcoap/issues/1310#issue-2099860835 ExploitIssue Tracking
https://github.com/obgm/libcoap/pull/1311 Issue TrackingPatch
https://vuldb.com/?ctiid.252206 Permissions Required
https://vuldb.com/?id.252206 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-0962), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.