CVE-2023-30362

HIGH
Published Jun 23, 20233y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 23, 2023 3y ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
libcoaplibcoap* <4.3.1-120-ge242200

References 2

  • github.com https://github.com/obgm/libcoap/issues/1063
    ExploitIssue TrackingThird Party Advisory
  • github.com https://github.com/obgm/libcoap/pull/1065
    Patch

Remediation

  • github.com https://github.com/obgm/libcoap/pull/1065
    Patch