CVE-2024-40494

CRITICAL
Published Oct 22, 2024 Modified Jun 24, 2025 CWE-120

Description

Buffer Overflow in coap_msg.c in FreeCoAP allows remote attackers to execute arbitrary code or cause a denial of service (stack buffer overflow) via a crafted packet.

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CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor Product
keith-cullen freecoap

References

Frequently Asked Questions

What is CVE-2024-40494? +
Buffer Overflow in coap_msg.c in FreeCoAP allows remote attackers to execute arbitrary code or cause a denial of service (stack buffer overflow) via a crafted packet. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2024-40494? +
CVE-2024-40494 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2024-40494? +
CVE-2024-40494 affects products from keith-cullen, specifically: freecoap. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-40494? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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