What’s Vulnerable › Vulnerabilities

CVE-2024-40494

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-10-22 · updated 2026-06-17
• Weakness: 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.

Affected products

• Keith-Cullen Freecoap: 0.7

References

• https://gist.github.com/dqp10515/e9d7d663cb89187bfe7b39bb3aeb0113
• https://github.com/dqp10515/security/tree/main/FreeCoAP_bug

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