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CVE-2025-66647: Buffer Copy without Checking Size of Input

🗓️ 17 Dec 2025 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 1 Views

Remote code execution in RIOT OS v2025.07 via IPv6 fragment reassembly buffer overflow.

Related
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
RIOT 安全漏洞
17 Dec 202500:00
–cnnvd
cve
CVE
CVE-2025-66647
17 Dec 202520:21
–cve
cvelist
Cvelist
CVE-2025-66647 RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass
17 Dec 202520:21
–cvelist
euvd
EUVD
EUVD-2025-203946
17 Dec 202520:21
–euvd
nvd
NVD
CVE-2025-66647
17 Dec 202521:16
–nvd
ptsecurity
Positive Technologies
PT-2025-51894
17 Dec 202500:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2025-66647
18 Dec 202520:37
–redhatcve
vulnrichment
Vulnrichment
CVE-2025-66647 RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass
17 Dec 202520:21
–vulnrichment

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22 Jan 2026 00:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 46.3
CVSS 3.19.8
EPSS0.00971
SSVC
1