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CVE-2025-66646

🗓️ 17 Dec 2025 19:18:08Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 21 Views

RIOT OS IPv6 fragment reassembly causes NULL pointer dereference and DoS when payload is empty at offset zero (requires gnrc_ipv6_ext_frag module).

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
RIOT 代码问题漏洞
17 Dec 202500:00
cnnvd
cvelist
Cvelist
CVE-2025-66646 RIOT-OS has NULL pointer dereference in gnrc_ipv6_ext_frag_reass
17 Dec 202519:18
cvelist
euvd
EUVD
EUVD-2025-203929
17 Dec 202519:18
euvd
nvd
NVD
CVE-2025-66646
17 Dec 202520:15
nvd
ptsecurity
Positive Technologies
PT-2025-51877
17 Dec 202500:00
ptsecurity
redhatcve
RedhatCVE
CVE-2025-66646
18 Dec 202519:44
redhatcve
vulnrichment
Vulnrichment
CVE-2025-66646 RIOT-OS has NULL pointer dereference in gnrc_ipv6_ext_frag_reass
17 Dec 202519:18
vulnrichment
NVD
Vulners
Node
OR
riot-osriotRange<2025.10
riot-osriotMatch2025.10rc1
riot-osriotMatch2025.10rc2
riot-osriotMatch2025.10rc3
[
  {
    "vendor": "RIOT-OS",
    "product": "RIOT",
    "versions": [
      {
        "version": "< 2025.10",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 09:57Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.5
CVSS 46.3
EPSS0.00607
SSVC
21